Deploy Production v7 prompt after validation

Successfully validated and deployed v7 prompt improvements:

Performance validation results:
- v7 vs old production: 12/18 cases better (67% win rate)
- Overall score improvement: 0.73 vs 0.69 (+5.8%)
- Key improvements: Conciseness +54%, Appropriateness +16%
- Token efficiency: 429 vs 478 tokens (10% more concise)

Deployment workflow validation:
✅ Automated publish command worked correctly
✅ Comprehensive validation (structure, message generation, integration tests)
✅ Service tested and confirmed working with new prompt
✅ Current prompt performance verified to match v7

This completes the full prompt improvement cycle from human feedback
integration through automated deployment to production validation.

Note: Backup files are now gitignored - git history serves as our rollback strategy.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: mattgodbolt

.gitignore

@@ -21,3 +21,4 @@ node_modules
 
 # Package build artifacts
 *.egg-info/
+*.backup

app/prompt.yaml

@@ -1,4 +1,4 @@
-name: Production v 7
+name: Production v7
 description: Production prompt - optimized for clarity, and insight depth incorporating
   56% human review coverage
 model: