feat: Production release v2.0.0 - Simple Document Processor

Major release with significant performance improvements and new processing strategy.

## Core Changes
- Implemented simple_full_document processing strategy (default)
- Full document → LLM approach: 1-2 passes, ~5-6 minutes processing time
- Achieved 100% completeness with 2 API calls (down from 5+)
- Removed redundant Document AI passes for faster processing

## Financial Data Extraction
- Enhanced deterministic financial table parser
- Improved FY3/FY2/FY1/LTM identification from varying CIM formats
- Automatic merging of parser results with LLM extraction

## Code Quality & Infrastructure
- Cleaned up debug logging (removed emoji markers from production code)
- Fixed Firebase Secrets configuration (using modern defineSecret approach)
- Updated OpenAI API key
- Resolved deployment conflicts (secrets vs environment variables)
- Added .env files to Firebase ignore list

## Deployment
- Firebase Functions v2 deployment successful
- All 7 required secrets verified and configured
- Function URL: https://api-y56ccs6wva-uc.a.run.app

## Performance Improvements
- Processing time: ~5-6 minutes (down from 23+ minutes)
- API calls: 1-2 (down from 5+)
- Completeness: 100% achievable
- LLM Model: claude-3-7-sonnet-latest

## Breaking Changes
- Default processing strategy changed to 'simple_full_document'
- RAG processor available as alternative strategy 'document_ai_agentic_rag'

## Files Changed
- 36 files changed, 5642 insertions(+), 4451 deletions(-)
- Removed deprecated documentation files
- Cleaned up unused services and models

This release represents a major refactoring focused on speed, accuracy, and maintainability.

.cursorignore

@@ -0,0 +1,78 @@
+# Dependencies
+node_modules/
+**/node_modules/
+
+# Build outputs
+dist/
+**/dist/
+build/
+**/build/
+
+# Log files
+*.log
+logs/
+**/logs/
+backend/logs/
+
+# Environment files
+.env
+.env.local
+.env.*.local
+*.env
+
+# IDE and editor files
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Firebase
+.firebase/
+firebase-debug.log
+firestore-debug.log
+ui-debug.log
+
+# Test coverage
+coverage/
+.nyc_output/
+
+# Temporary files
+*.tmp
+*.temp
+.cache/
+
+# Documentation files (exclude from code indexing, but keep in project)
+# These are documentation, not code, so exclude from semantic search
+*.md
+!README.md
+!QUICK_START.md
+
+# Large binary files
+*.pdf
+*.png
+*.jpg
+*.jpeg
+*.gif
+*.ico
+
+# Service account keys (security)
+**/serviceAccountKey.json
+**/*-key.json
+**/*-keys.json
+
+# SQL migration files (include in project but exclude from code indexing)
+backend/sql/*.sql
+
+# Script outputs
+backend/src/scripts/*.js
+backend/scripts/*.js
+
+# TypeScript declaration maps
+*.d.ts.map
+*.js.map
+