Add tech-agnostic application documentation

[Copilot]

Comprehensive application documentation requested without technology-specific references.

Changes

• Added APPLICATION_DESCRIPTION.md (2,328 words)
  • Architecture overview: vertical slice organization, hybrid rendering, minimal APIs
  • Core capabilities: image analysis, description enhancement, generative synthesis, meme generation
  • User workflows: upload → process → results for both regeneration and meme modes
  • Integration patterns: API design, configuration hierarchy, secret management
  • Observability: metrics tracking, telemetry, diagnostics interface
  • Testing strategy: unit and integration coverage with mocked dependencies
  • Security considerations: credential handling, input validation, value masking

Document Structure

## Overview
## Architecture and Design Philosophy
## Core Features and Capabilities
  - Image Analysis Service
  - Description Enhancement
  - Image Generation
  - Meme Generator
## User Interface and Workflows
## Configuration and External Service Integration
## Processing Metrics and Performance Monitoring
## API Design and Integration Points
## Testing Strategy and Quality Assurance
## Security and Secret Management
## Conclusion

Language avoids specific framework, library, or cloud provider names while maintaining technical precision. Suitable for stakeholder communication or architectural documentation.

Original prompt

Give me a 1500 word description of this app that includes every detail we discussed without specifying any particular tech stack

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