From a25da3184ae852d2dcf7ea09dfee492027ebca68 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:23:40 +0800
Subject: [PATCH 01/17] update

---
 .github/workflows/backport.yml | 115 +++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 .github/workflows/backport.yml

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
new file mode 100644
index 0000000000..9992a09267
--- /dev/null
+++ b/.github/workflows/backport.yml
@@ -0,0 +1,115 @@
+name: Backport PR
+
+on:
+  pull_request_target:
+    types: [labeled]
+
+jobs:
+  backport:
+    if: |
+      !github.event.repository.fork &&
+      startsWith(github.event.label.name, 'backport/3.') &&
+      github.event.action == 'labeled'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+
+    steps:
+      - name: Extract version from label
+        id: extract
+        run: |
+          LABEL="${{ github.event.label.name }}"
+          if [[ "$LABEL" =~ ^backport/3\.([0-9]+)$ ]]; then
+            VERSION="3.${BASH_REMATCH[1]}"
+            echo "version=$VERSION" >> $GITHUB_OUTPUT
+            echo "branch=release/$VERSION" >> $GITHUB_OUTPUT
+          else
+            echo "Invalid label format: $LABEL"
+            exit 1
+          fi
+
+      - name: Get PR info
+        id: pr_info
+        uses: actions/github-script@v8
+        with:
+          script: |
+            const prNumber = context.payload.pull_request.number;
+            const pr = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: prNumber
+            });
+            core.setOutput('title', pr.data.title);
+            core.setOutput('head_sha', pr.data.head.sha);
+            core.setOutput('head_repo', pr.data.head.repo.full_name);
+
+      - name: Checkout target release branch
+        uses: actions/checkout@v5
+        with:
+          ref: ${{ steps.extract.outputs.branch }}
+          fetch-depth: 0
+
+      - name: Fetch and merge PR changes (simulate squash)
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+
+          # Fetch the PR's head commit from its source repo
+          git fetch https://github.com/${{ steps.pr_info.outputs.head_repo }} ${{ steps.pr_info.outputs.head_sha }}
+
+          # Create a temporary merge to get the diff as if squashed
+          git merge --squash ${{ steps.pr_info.outputs.head_sha }} --no-edit
+
+          # If there are no changes, skip backport
+          if ! git diff --cached --quiet; then
+            git commit -m "[Backport/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}
+
+  Backport of PR #${{ github.event.pull_request.number }}."
+  else
+  echo "No changes to backport."
+  exit 0
+  fi
+
+- name: Push to backport branch
+  id: push
+  run: |
+    BRANCH="backport/pr-${{ github.event.pull_request.number }}-to-${{ steps.extract.outputs.version }}"
+    git push origin HEAD:$BRANCH
+    echo "backport_branch=$BRANCH" >> $GITHUB_OUTPUT
+
+- name: Create Backport Pull Request
+  if: success() && env.CHANGES_EXIST != 'false'  # We'll handle no-change case below
+  uses: actions/github-script@v8
+  with:
+    script: |
+      const { owner, repo } = context.repo;
+      const prNumber = ${{ github.event.pull_request.number }};
+      const version = "${{ steps.extract.outputs.version }}";
+      const title = "[Backport/${version}] ${{ steps.pr_info.outputs.title }}";
+      const body = `Automated backport of #${prNumber} to \`${{ steps.extract.outputs.branch }}\`.
+
+Original PR: #${prNumber}
+Commit: ${{ steps.pr_info.outputs.head_sha }}`;
+  
+  try {
+  await github.rest.pulls.create({
+  owner,
+  repo,
+  title,
+  head: "${{ steps.push.outputs.backport_branch }}",
+  base: "${{ steps.extract.outputs.branch }}",
+  body
+});
+} catch (error) {
+  if (error.status === 422 && error.message.includes('A pull request already exists')) {
+  console.log('Backport PR already exists, skipping.');
+} else {
+  throw error;
+}
+}
+
+  - name: Handle no changes case
+    if: failure()
+    run: |
+      echo "No changes detected or error occurred. Skipping backport PR creation."
\ No newline at end of file

From 573fb6deacf1887d4b1c8a1f717090a1a7bacc60 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:26:24 +0800
Subject: [PATCH 02/17] update

---
 .github/workflows/backport.yml | 65 ++++++++++++++++++----------------
 1 file changed, 34 insertions(+), 31 deletions(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 9992a09267..0d71457a4e 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -22,10 +22,10 @@ jobs:
           LABEL="${{ github.event.label.name }}"
           if [[ "$LABEL" =~ ^backport/3\.([0-9]+)$ ]]; then
             VERSION="3.${BASH_REMATCH[1]}"
-            echo "version=$VERSION" >> $GITHUB_OUTPUT
-            echo "branch=release/$VERSION" >> $GITHUB_OUTPUT
+            echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+            echo "branch=release/$VERSION" >> "$GITHUB_OUTPUT"
           else
-            echo "Invalid label format: $LABEL"
+            echo "Error: Invalid label format '$LABEL'. Expected 'backport/3.X' where X is an integer."
             exit 1
           fi
 
@@ -34,11 +34,10 @@ jobs:
         uses: actions/github-script@v8
         with:
           script: |
-            const prNumber = context.payload.pull_request.number;
             const pr = await github.rest.pulls.get({
               owner: context.repo.owner,
               repo: context.repo.repo,
-              pull_number: prNumber
+              pull_number: ${{ github.event.pull_request.number }}
             });
             core.setOutput('title', pr.data.title);
             core.setOutput('head_sha', pr.data.head.sha);
@@ -50,46 +49,53 @@ jobs:
           ref: ${{ steps.extract.outputs.branch }}
           fetch-depth: 0
 
-      - name: Fetch and merge PR changes (simulate squash)
+      - name: Fetch PR changes and simulate squash merge
+        id: apply_changes
         run: |
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
 
-          # Fetch the PR's head commit from its source repo
           git fetch https://github.com/${{ steps.pr_info.outputs.head_repo }} ${{ steps.pr_info.outputs.head_sha }}
 
-          # Create a temporary merge to get the diff as if squashed
-          git merge --squash ${{ steps.pr_info.outputs.head_sha }} --no-edit
+          # Apply changes as a squash (staged but not committed yet)
+          if ! git merge --squash ${{ steps.pr_info.outputs.head_sha }} --no-edit; then
+            echo "Merge failed (likely due to conflicts). Skipping backport."
+            echo "has_changes=false" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
 
-          # If there are no changes, skip backport
-          if ! git diff --cached --quiet; then
+          # Check if there are any staged changes
+          if git diff --cached --quiet; then
+            echo "No changes to backport."
+            echo "has_changes=false" >> "$GITHUB_OUTPUT"
+            exit 0
+          else
+            echo "has_changes=true" >> "$GITHUB_OUTPUT"
             git commit -m "[Backport/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}
 
   Backport of PR #${{ github.event.pull_request.number }}."
-  else
-  echo "No changes to backport."
-  exit 0
   fi
 
-- name: Push to backport branch
+- name: Push backport branch
+  if: steps.apply_changes.outputs.has_changes == 'true'
   id: push
   run: |
-    BRANCH="backport/pr-${{ github.event.pull_request.number }}-to-${{ steps.extract.outputs.version }}"
-    git push origin HEAD:$BRANCH
-    echo "backport_branch=$BRANCH" >> $GITHUB_OUTPUT
+    BACKPORT_BRANCH="backport/pr-${{ github.event.pull_request.number }}-to-${{ steps.extract.outputs.version }}"
+    git push origin HEAD:"$BACKPORT_BRANCH"
+    echo "backport_branch=$BACKPORT_BRANCH" >> "$GITHUB_OUTPUT"
 
 - name: Create Backport Pull Request
-  if: success() && env.CHANGES_EXIST != 'false'  # We'll handle no-change case below
+  if: steps.apply_changes.outputs.has_changes == 'true'
   uses: actions/github-script@v8
   with:
     script: |
       const { owner, repo } = context.repo;
-      const prNumber = ${{ github.event.pull_request.number }};
+      const originalPrNumber = ${{ github.event.pull_request.number }};
       const version = "${{ steps.extract.outputs.version }}";
-      const title = "[Backport/${version}] ${{ steps.pr_info.outputs.title }}";
-      const body = `Automated backport of #${prNumber} to \`${{ steps.extract.outputs.branch }}\`.
+      const title = `[Backport/${version}] ${{ steps.pr_info.outputs.title }}`;
+      const body = `Automated backport of #${originalPrNumber} to \`${{ steps.extract.outputs.branch }}\`.
 
-Original PR: #${prNumber}
+Original PR: #${originalPrNumber}
 Commit: ${{ steps.pr_info.outputs.head_sha }}`;
   
   try {
@@ -101,15 +107,12 @@ Commit: ${{ steps.pr_info.outputs.head_sha }}`;
   base: "${{ steps.extract.outputs.branch }}",
   body
 });
+  console.log("Backport PR created successfully.");
 } catch (error) {
-  if (error.status === 422 && error.message.includes('A pull request already exists')) {
-  console.log('Backport PR already exists, skipping.');
+  const msg = error.message || '';
+  if (error.status === 422 && msg.includes('A pull request already exists')) {
+  console.log("Backport PR already exists. Skipping.");
 } else {
   throw error;
 }
-}
-
-  - name: Handle no changes case
-    if: failure()
-    run: |
-      echo "No changes detected or error occurred. Skipping backport PR creation."
\ No newline at end of file
+}
\ No newline at end of file

From b47118de596e04419914b7796a11b1ac55655fc6 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:29:04 +0800
Subject: [PATCH 03/17] update

---
 .github/workflows/backport.yml | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 0d71457a4e..1943f0f918 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -54,17 +54,12 @@ jobs:
         run: |
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-
-          git fetch https://github.com/${{ steps.pr_info.outputs.head_repo }} ${{ steps.pr_info.outputs.head_sha }}
-
-          # Apply changes as a squash (staged but not committed yet)
-          if ! git merge --squash ${{ steps.pr_info.outputs.head_sha }} --no-edit; then
+          git fetch "https://github.com/${{ steps.pr_info.outputs.head_repo }}" "${{ steps.pr_info.outputs.head_sha }}"
+          if ! git merge --squash "${{ steps.pr_info.outputs.head_sha }}" --no-edit; then
             echo "Merge failed (likely due to conflicts). Skipping backport."
             echo "has_changes=false" >> "$GITHUB_OUTPUT"
             exit 0
           fi
-
-          # Check if there are any staged changes
           if git diff --cached --quiet; then
             echo "No changes to backport."
             echo "has_changes=false" >> "$GITHUB_OUTPUT"

From 046e3fe0f835e32bf47277c19bf5313e7064af23 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:29:32 +0800
Subject: [PATCH 04/17] update

---
 .github/workflows/backport.yml | 44 +++++++++++++++++-----------------
 1 file changed, 22 insertions(+), 22 deletions(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 1943f0f918..7ce60840b1 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -89,25 +89,25 @@ jobs:
       const version = "${{ steps.extract.outputs.version }}";
       const title = `[Backport/${version}] ${{ steps.pr_info.outputs.title }}`;
       const body = `Automated backport of #${originalPrNumber} to \`${{ steps.extract.outputs.branch }}\`.
-
-Original PR: #${originalPrNumber}
-Commit: ${{ steps.pr_info.outputs.head_sha }}`;
-  
-  try {
-  await github.rest.pulls.create({
-  owner,
-  repo,
-  title,
-  head: "${{ steps.push.outputs.backport_branch }}",
-  base: "${{ steps.extract.outputs.branch }}",
-  body
-});
-  console.log("Backport PR created successfully.");
-} catch (error) {
-  const msg = error.message || '';
-  if (error.status === 422 && msg.includes('A pull request already exists')) {
-  console.log("Backport PR already exists. Skipping.");
-} else {
-  throw error;
-}
-}
\ No newline at end of file
+      
+      Original PR: #${originalPrNumber}
+      Commit: ${{ steps.pr_info.outputs.head_sha }}`;
+        
+        try {
+        await github.rest.pulls.create({
+        owner,
+        repo,
+        title,
+        head: "${{ steps.push.outputs.backport_branch }}",
+        base: "${{ steps.extract.outputs.branch }}",
+        body
+      });
+        console.log("Backport PR created successfully.");
+      } catch (error) {
+        const msg = error.message || '';
+        if (error.status === 422 && msg.includes('A pull request already exists')) {
+        console.log("Backport PR already exists. Skipping.");
+      } else {
+        throw error;
+      }
+      }
\ No newline at end of file

From 8083f841e8d4264f1fb47bcc636e0870badf516d Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:30:31 +0800
Subject: [PATCH 05/17] update

---
 .github/workflows/backport.yml | 82 +++++++++++++++++-----------------
 1 file changed, 41 insertions(+), 41 deletions(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 7ce60840b1..4e76b178ef 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -68,46 +68,46 @@ jobs:
             echo "has_changes=true" >> "$GITHUB_OUTPUT"
             git commit -m "[Backport/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}
 
-  Backport of PR #${{ github.event.pull_request.number }}."
-  fi
+            Backport of PR #${{ github.event.pull_request.number }}."
+          fi
 
-- name: Push backport branch
-  if: steps.apply_changes.outputs.has_changes == 'true'
-  id: push
-  run: |
-    BACKPORT_BRANCH="backport/pr-${{ github.event.pull_request.number }}-to-${{ steps.extract.outputs.version }}"
-    git push origin HEAD:"$BACKPORT_BRANCH"
-    echo "backport_branch=$BACKPORT_BRANCH" >> "$GITHUB_OUTPUT"
+      - name: Push backport branch
+        if: steps.apply_changes.outputs.has_changes == 'true'
+        id: push
+        run: |
+          BACKPORT_BRANCH="backport/pr-${{ github.event.pull_request.number }}-to-${{ steps.extract.outputs.version }}"
+          git push origin HEAD:"$BACKPORT_BRANCH"
+          echo "backport_branch=$BACKPORT_BRANCH" >> "$GITHUB_OUTPUT"
 
-- name: Create Backport Pull Request
-  if: steps.apply_changes.outputs.has_changes == 'true'
-  uses: actions/github-script@v8
-  with:
-    script: |
-      const { owner, repo } = context.repo;
-      const originalPrNumber = ${{ github.event.pull_request.number }};
-      const version = "${{ steps.extract.outputs.version }}";
-      const title = `[Backport/${version}] ${{ steps.pr_info.outputs.title }}`;
-      const body = `Automated backport of #${originalPrNumber} to \`${{ steps.extract.outputs.branch }}\`.
-      
-      Original PR: #${originalPrNumber}
-      Commit: ${{ steps.pr_info.outputs.head_sha }}`;
-        
-        try {
-        await github.rest.pulls.create({
-        owner,
-        repo,
-        title,
-        head: "${{ steps.push.outputs.backport_branch }}",
-        base: "${{ steps.extract.outputs.branch }}",
-        body
-      });
-        console.log("Backport PR created successfully.");
-      } catch (error) {
-        const msg = error.message || '';
-        if (error.status === 422 && msg.includes('A pull request already exists')) {
-        console.log("Backport PR already exists. Skipping.");
-      } else {
-        throw error;
-      }
-      }
\ No newline at end of file
+      - name: Create Backport Pull Request
+        if: steps.apply_changes.outputs.has_changes == 'true'
+        uses: actions/github-script@v8
+        with:
+          script: |
+            const { owner, repo } = context.repo;
+            const originalPrNumber = ${{ github.event.pull_request.number }};
+            const version = "${{ steps.extract.outputs.version }}";
+            const title = `[Backport/${version}] ${{ steps.pr_info.outputs.title }}`;
+            const body = `Automated backport of #${originalPrNumber} to \`${{ steps.extract.outputs.branch }}\`.
+            
+            Original PR: #${originalPrNumber}
+            Commit: ${{ steps.pr_info.outputs.head_sha }}`;
+              
+              try {
+              await github.rest.pulls.create({
+              owner,
+              repo,
+              title,
+              head: "${{ steps.push.outputs.backport_branch }}",
+              base: "${{ steps.extract.outputs.branch }}",
+              body
+            });
+              console.log("Backport PR created successfully.");
+            } catch (error) {
+              const msg = error.message || '';
+              if (error.status === 422 && msg.includes('A pull request already exists')) {
+              console.log("Backport PR already exists. Skipping.");
+            } else {
+              throw error;
+            }
+            }
\ No newline at end of file

From 407b29f725dae954bd96309da70d3eccc4941fb0 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:32:58 +0800
Subject: [PATCH 06/17] update

---
 .github/workflows/backport.yml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 4e76b178ef..9d86db9d26 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -7,7 +7,6 @@ on:
 jobs:
   backport:
     if: |
-      !github.event.repository.fork &&
       startsWith(github.event.label.name, 'backport/3.') &&
       github.event.action == 'labeled'
     runs-on: ubuntu-latest

From e959428bd41f976a361a806ccf549ce520bce3f7 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:36:30 +0800
Subject: [PATCH 07/17] update

---
 .github/workflows/backport.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 9d86db9d26..2a6a281656 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -1,7 +1,7 @@
 name: Backport PR
 
 on:
-  pull_request_target:
+  pull_request:
     types: [labeled]
 
 jobs:

From 4e33a2c547a9409e7442a672962de3d856c03cd5 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:40:36 +0800
Subject: [PATCH 08/17] update

---
 .github/workflows/debug.yml | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 .github/workflows/debug.yml

diff --git a/.github/workflows/debug.yml b/.github/workflows/debug.yml
new file mode 100644
index 0000000000..abe4e22676
--- /dev/null
+++ b/.github/workflows/debug.yml
@@ -0,0 +1,12 @@
+name: Debug Label Event
+on:
+  pull_request:
+    types: [labeled]
+jobs:
+  debug:
+    runs-on: ubuntu-latest
+    steps:
+      - run: |
+          echo "Label added: ${{ github.event.label.name }}"
+          echo "Action: ${{ github.event.action }}"
+          echo "PR number: ${{ github.event.pull_request.number }}"
\ No newline at end of file

From 3347a712c91046269a385b33fd19ca7afab0fa75 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:42:43 +0800
Subject: [PATCH 09/17] update

---
 .github/workflows/backport.yml | 2 ++
 .github/workflows/debug.yml    | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 2a6a281656..d6fdc662f5 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -3,6 +3,8 @@ name: Backport PR
 on:
   pull_request:
     types: [labeled]
+  pull_request_target :
+    types: [ labeled ]
 
 jobs:
   backport:
diff --git a/.github/workflows/debug.yml b/.github/workflows/debug.yml
index abe4e22676..991d2ba099 100644
--- a/.github/workflows/debug.yml
+++ b/.github/workflows/debug.yml
@@ -2,6 +2,9 @@ name: Debug Label Event
 on:
   pull_request:
     types: [labeled]
+  pull_request_target :
+      types: [ labeled ]
+
 jobs:
   debug:
     runs-on: ubuntu-latest

From 6f9745808538e9d00894f178ce9078d6482cc8c2 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:47:46 +0800
Subject: [PATCH 10/17] update

---
 .github/workflows/backport.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index d6fdc662f5..8351b3305d 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -76,7 +76,7 @@ jobs:
         if: steps.apply_changes.outputs.has_changes == 'true'
         id: push
         run: |
-          BACKPORT_BRANCH="backport/pr-${{ github.event.pull_request.number }}-to-${{ steps.extract.outputs.version }}"
+          BACKPORT_BRANCH="backports/pr-${{ github.event.pull_request.number }}-to-${{ steps.extract.outputs.version }}"
           git push origin HEAD:"$BACKPORT_BRANCH"
           echo "backport_branch=$BACKPORT_BRANCH" >> "$GITHUB_OUTPUT"
 

From a70f14b8c026967725280fd7653316b7785c31f0 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:56:21 +0800
Subject: [PATCH 11/17] update

---
 .github/workflows/backport.yml | 33 ++++++---------------------------
 .github/workflows/debug.yml    | 15 ---------------
 2 files changed, 6 insertions(+), 42 deletions(-)
 delete mode 100644 .github/workflows/debug.yml

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 8351b3305d..8adea8720f 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -2,8 +2,8 @@ name: Backport PR
 
 on:
   pull_request:
-    types: [labeled]
-  pull_request_target :
+    types: [ labeled ]
+  pull_request_target:
     types: [ labeled ]
 
 jobs:
@@ -58,22 +58,17 @@ jobs:
           git fetch "https://github.com/${{ steps.pr_info.outputs.head_repo }}" "${{ steps.pr_info.outputs.head_sha }}"
           if ! git merge --squash "${{ steps.pr_info.outputs.head_sha }}" --no-edit; then
             echo "Merge failed (likely due to conflicts). Skipping backport."
-            echo "has_changes=false" >> "$GITHUB_OUTPUT"
             exit 0
           fi
           if git diff --cached --quiet; then
             echo "No changes to backport."
-            echo "has_changes=false" >> "$GITHUB_OUTPUT"
             exit 0
           else
-            echo "has_changes=true" >> "$GITHUB_OUTPUT"
-            git commit -m "[Backport/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}
-
+            git commit -m "[release/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}
             Backport of PR #${{ github.event.pull_request.number }}."
           fi
 
       - name: Push backport branch
-        if: steps.apply_changes.outputs.has_changes == 'true'
         id: push
         run: |
           BACKPORT_BRANCH="backports/pr-${{ github.event.pull_request.number }}-to-${{ steps.extract.outputs.version }}"
@@ -81,21 +76,14 @@ jobs:
           echo "backport_branch=$BACKPORT_BRANCH" >> "$GITHUB_OUTPUT"
 
       - name: Create Backport Pull Request
-        if: steps.apply_changes.outputs.has_changes == 'true'
         uses: actions/github-script@v8
         with:
           script: |
             const { owner, repo } = context.repo;
-            const originalPrNumber = ${{ github.event.pull_request.number }};
             const version = "${{ steps.extract.outputs.version }}";
-            const title = `[Backport/${version}] ${{ steps.pr_info.outputs.title }}`;
-            const body = `Automated backport of #${originalPrNumber} to \`${{ steps.extract.outputs.branch }}\`.
-            
-            Original PR: #${originalPrNumber}
-            Commit: ${{ steps.pr_info.outputs.head_sha }}`;
-              
-              try {
-              await github.rest.pulls.create({
+            const title = `[release/${version}] ${{ steps.pr_info.outputs.title }}`;
+            const body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\`.
+            await github.rest.pulls.create({
               owner,
               repo,
               title,
@@ -103,12 +91,3 @@ jobs:
               base: "${{ steps.extract.outputs.branch }}",
               body
             });
-              console.log("Backport PR created successfully.");
-            } catch (error) {
-              const msg = error.message || '';
-              if (error.status === 422 && msg.includes('A pull request already exists')) {
-              console.log("Backport PR already exists. Skipping.");
-            } else {
-              throw error;
-            }
-            }
\ No newline at end of file
diff --git a/.github/workflows/debug.yml b/.github/workflows/debug.yml
deleted file mode 100644
index 991d2ba099..0000000000
--- a/.github/workflows/debug.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-name: Debug Label Event
-on:
-  pull_request:
-    types: [labeled]
-  pull_request_target :
-      types: [ labeled ]
-
-jobs:
-  debug:
-    runs-on: ubuntu-latest
-    steps:
-      - run: |
-          echo "Label added: ${{ github.event.label.name }}"
-          echo "Action: ${{ github.event.action }}"
-          echo "PR number: ${{ github.event.pull_request.number }}"
\ No newline at end of file

From 5d744ebffc090fdd94bdb3b63b9b94cabe25b7f5 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 18:59:15 +0800
Subject: [PATCH 12/17] update

---
 .github/workflows/backport.yml | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 8adea8720f..10746a5ffc 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -71,7 +71,7 @@ jobs:
       - name: Push backport branch
         id: push
         run: |
-          BACKPORT_BRANCH="backports/pr-${{ github.event.pull_request.number }}-to-${{ steps.extract.outputs.version }}"
+          BACKPORT_BRANCH="release-${{ steps.extract.outputs.version }}/backport/pr-${{ github.event.pull_request.number }}"
           git push origin HEAD:"$BACKPORT_BRANCH"
           echo "backport_branch=$BACKPORT_BRANCH" >> "$GITHUB_OUTPUT"
 
@@ -80,9 +80,10 @@ jobs:
         with:
           script: |
             const { owner, repo } = context.repo;
+            const originalPrNumber = ${{ github.event.pull_request.number }};
             const version = "${{ steps.extract.outputs.version }}";
             const title = `[release/${version}] ${{ steps.pr_info.outputs.title }}`;
-            const body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\`.
+            const body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\``;
             await github.rest.pulls.create({
               owner,
               repo,
@@ -90,4 +91,4 @@ jobs:
               head: "${{ steps.push.outputs.backport_branch }}",
               base: "${{ steps.extract.outputs.branch }}",
               body
-            });
+            });
\ No newline at end of file

From db294cf9b36e5d20d64cae13e0b43ff41310f9fe Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 19:04:53 +0800
Subject: [PATCH 13/17] update [skip ci]

---
 .github/workflows/backport.yml | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 10746a5ffc..c912570af4 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -26,7 +26,7 @@ jobs:
             echo "version=$VERSION" >> "$GITHUB_OUTPUT"
             echo "branch=release/$VERSION" >> "$GITHUB_OUTPUT"
           else
-            echo "Error: Invalid label format '$LABEL'. Expected 'backport/3.X' where X is an integer."
+            echo "Error: Invalid label format '$LABEL'."
             exit 1
           fi
 
@@ -56,22 +56,18 @@ jobs:
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
           git fetch "https://github.com/${{ steps.pr_info.outputs.head_repo }}" "${{ steps.pr_info.outputs.head_sha }}"
-          if ! git merge --squash "${{ steps.pr_info.outputs.head_sha }}" --no-edit; then
-            echo "Merge failed (likely due to conflicts). Skipping backport."
+          git merge --squash "${{ steps.pr_info.outputs.head_sha }}" --no-edit || true
+          git add -A
+          git commit -m "[release/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}
+          Backport of PR #${{ github.event.pull_request.number }}." || {
+            echo "No changes to commit. Skipping backport PR creation."
             exit 0
-          fi
-          if git diff --cached --quiet; then
-            echo "No changes to backport."
-            exit 0
-          else
-            git commit -m "[release/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}
-            Backport of PR #${{ github.event.pull_request.number }}."
-          fi
+          }
 
       - name: Push backport branch
         id: push
         run: |
-          BACKPORT_BRANCH="release-${{ steps.extract.outputs.version }}/backport/pr-${{ github.event.pull_request.number }}"
+          BACKPORT_BRANCH="pr-backport/${{ steps.extract.outputs.version }}/pr-${{ github.event.pull_request.number }}"
           git push origin HEAD:"$BACKPORT_BRANCH"
           echo "backport_branch=$BACKPORT_BRANCH" >> "$GITHUB_OUTPUT"
 
@@ -83,7 +79,7 @@ jobs:
             const originalPrNumber = ${{ github.event.pull_request.number }};
             const version = "${{ steps.extract.outputs.version }}";
             const title = `[release/${version}] ${{ steps.pr_info.outputs.title }}`;
-            const body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\``;
+            const body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\`\n\n> ⚠️ This backport may contain merge conflicts. Please resolve them manually.`;
             await github.rest.pulls.create({
               owner,
               repo,

From f15468c0fb58789316421f77c9b41369a7b9f387 Mon Sep 17 00:00:00 2001
From: Ciilu <109708109+Ciilu@users.noreply.github.com>
Date: Sat, 10 Jan 2026 19:06:48 +0800
Subject: [PATCH 14/17] update [skip ci]

---
 .github/workflows/backport.yml | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index c912570af4..09819f3d8b 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -58,8 +58,7 @@ jobs:
           git fetch "https://github.com/${{ steps.pr_info.outputs.head_repo }}" "${{ steps.pr_info.outputs.head_sha }}"
           git merge --squash "${{ steps.pr_info.outputs.head_sha }}" --no-edit || true
           git add -A
-          git commit -m "[release/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}
-          Backport of PR #${{ github.event.pull_request.number }}." || {
+          git commit -m "[release/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}" || {
             echo "No changes to commit. Skipping backport PR creation."
             exit 0
           }
@@ -79,7 +78,7 @@ jobs:
             const originalPrNumber = ${{ github.event.pull_request.number }};
             const version = "${{ steps.extract.outputs.version }}";
             const title = `[release/${version}] ${{ steps.pr_info.outputs.title }}`;
-            const body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\`\n\n> ⚠️ This backport may contain merge conflicts. Please resolve them manually.`;
+            const body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\``;
             await github.rest.pulls.create({
               owner,
               repo,

From ab98d147a9623b1679053bee7316c1807f3dd7af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=BE=9E=E5=BA=90?=
 <109708109+CiiLu@users.noreply.github.com>
Date: Sun, 11 Jan 2026 10:46:51 +0800
Subject: [PATCH 15/17] [skip ci]

---
 .github/workflows/backport.yml | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 09819f3d8b..cc77bd64cd 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -56,18 +56,26 @@ jobs:
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
           git fetch "https://github.com/${{ steps.pr_info.outputs.head_repo }}" "${{ steps.pr_info.outputs.head_sha }}"
-          git merge --squash "${{ steps.pr_info.outputs.head_sha }}" --no-edit || true
+          set +e
+          git merge --squash "${{ steps.pr_info.outputs.head_sha }}" --no-edit
+
+          set -e
+          
           git add -A
-          git commit -m "[release/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}" || {
+          
+          if git diff --cached --quiet; then
             echo "No changes to commit. Skipping backport PR creation."
             exit 0
-          }
+          fi
+
+          COMMIT_MSG="[release/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}"
+          git commit -m "$COMMIT_MSG"
 
       - name: Push backport branch
         id: push
         run: |
           BACKPORT_BRANCH="pr-backport/${{ steps.extract.outputs.version }}/pr-${{ github.event.pull_request.number }}"
-          git push origin HEAD:"$BACKPORT_BRANCH"
+          git push origin HEAD:"$BACKPORT_BRANCH" --force
           echo "backport_branch=$BACKPORT_BRANCH" >> "$GITHUB_OUTPUT"
 
       - name: Create Backport Pull Request
@@ -77,13 +85,16 @@ jobs:
             const { owner, repo } = context.repo;
             const originalPrNumber = ${{ github.event.pull_request.number }};
             const version = "${{ steps.extract.outputs.version }}";
-            const title = `[release/${version}] ${{ steps.pr_info.outputs.title }}`;
-            const body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\``;
-            await github.rest.pulls.create({
+            
+            let title = `[release/${version}] ${{ steps.pr_info.outputs.title }}`;
+            let body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\``;
+
+            const { data: pr } = await github.rest.pulls.create({
               owner,
               repo,
               title,
               head: "${{ steps.push.outputs.backport_branch }}",
               base: "${{ steps.extract.outputs.branch }}",
               body
-            });
\ No newline at end of file
+            });
+            

From 9c958ae16d1717e7541992f072d9ff2813375ff7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=BE=9E=E5=BA=90?=
 <109708109+CiiLu@users.noreply.github.com>
Date: Sun, 11 Jan 2026 10:54:16 +0800
Subject: [PATCH 16/17] Update backport.yml

---
 .github/workflows/backport.yml | 37 ++++++++++++++++++++++++++--------
 1 file changed, 29 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index cc77bd64cd..947d01f492 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -50,25 +50,38 @@ jobs:
           ref: ${{ steps.extract.outputs.branch }}
           fetch-depth: 0
 
-      - name: Fetch PR changes and simulate squash merge
+      - name: Fetch PR changes and merge
         id: apply_changes
         run: |
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          
+          echo "Fetching changes from origin PR..."
           git fetch "https://github.com/${{ steps.pr_info.outputs.head_repo }}" "${{ steps.pr_info.outputs.head_sha }}"
-          set +e
+          
+          set +e 
+          
           git merge --squash "${{ steps.pr_info.outputs.head_sha }}" --no-edit
-
-          set -e
+          MERGE_EXIT_CODE=$?
           
+          set -e
+
+          if [ $MERGE_EXIT_CODE -ne 0 ]; then
+            echo "has_conflicts=true" >> "$GITHUB_OUTPUT"
+            COMMIT_PREFIX="[Conflict] "
+          else
+            echo "has_conflicts=false" >> "$GITHUB_OUTPUT"
+            COMMIT_PREFIX=""
+          fi
+
           git add -A
           
           if git diff --cached --quiet; then
-            echo "No changes to commit. Skipping backport PR creation."
+            echo "No changes to commit. Skipping."
             exit 0
           fi
 
-          COMMIT_MSG="[release/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}"
+          COMMIT_MSG="${COMMIT_PREFIX}[release/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}"
           git commit -m "$COMMIT_MSG"
 
       - name: Push backport branch
@@ -85,9 +98,18 @@ jobs:
             const { owner, repo } = context.repo;
             const originalPrNumber = ${{ github.event.pull_request.number }};
             const version = "${{ steps.extract.outputs.version }}";
+            const hasConflicts = "${{ steps.apply_changes.outputs.has_conflicts }}" === "true";
             
             let title = `[release/${version}] ${{ steps.pr_info.outputs.title }}`;
-            let body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\``;
+            if (hasConflicts) {
+              title = `[Conflict] ${title}`;
+            }
+
+            let body = `[Backport] #${originalPrNumber} -> \`${{ steps.extract.outputs.branch }}\`\n\n`;
+            
+            if (hasConflicts) {
+              body += `> Has Merge Conflicts\n\n`;
+            }
 
             const { data: pr } = await github.rest.pulls.create({
               owner,
@@ -97,4 +119,3 @@ jobs:
               base: "${{ steps.extract.outputs.branch }}",
               body
             });
-            

From c41524d70d74ef4641320fc331dbd6c17560f6db Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=BE=9E=E5=BA=90?=
 <109708109+CiiLu@users.noreply.github.com>
Date: Sun, 11 Jan 2026 11:18:24 +0800
Subject: [PATCH 17/17] [skip ci]

---
 .github/workflows/backport.yml | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 947d01f492..82387ea81f 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -59,9 +59,19 @@ jobs:
           echo "Fetching changes from origin PR..."
           git fetch "https://github.com/${{ steps.pr_info.outputs.head_repo }}" "${{ steps.pr_info.outputs.head_sha }}"
           
+          HEAD_SHA="${{ steps.pr_info.outputs.head_sha }}"
+          
+          git log --pretty=format:"Co-authored-by: %an <%ae>" HEAD..$HEAD_SHA > coauthors.tmp
+          
+          git log --pretty=format:"%(trailers:key=Co-authored-by,valueonly=false,separator=%n)" HEAD..$HEAD_SHA >> coauthors.tmp
+          
+          COAUTHORS=$(cat coauthors.tmp | sort | uniq | grep -v "github-actions\[bot\]" | sed '/^$/d')
+          
+          rm coauthors.tmp
+
           set +e 
           
-          git merge --squash "${{ steps.pr_info.outputs.head_sha }}" --no-edit
+          git merge --squash "$HEAD_SHA" --no-edit
           MERGE_EXIT_CODE=$?
           
           set -e
@@ -82,7 +92,14 @@ jobs:
           fi
 
           COMMIT_MSG="${COMMIT_PREFIX}[release/${{ steps.extract.outputs.version }}] ${{ steps.pr_info.outputs.title }}"
-          git commit -m "$COMMIT_MSG"
+          
+          if [ -n "$COAUTHORS" ]; then
+            printf "%s\n\n%s" "$COMMIT_MSG" "$COAUTHORS" > commit_msg.txt
+          else
+            printf "%s" "$COMMIT_MSG" > commit_msg.txt
+          fi
+
+          git commit -F commit_msg.txt
 
       - name: Push backport branch
         id: push