test: verify coverage above 80% after dead code removal

[miams]

Purpose

Verify that test coverage is now above 80% after removing dead code.

Changes in develop branch

1. ✅ Removed rmagent/generators/biography.py (817 lines, 0% coverage)
2. ✅ Removed rmagent/rmlib/prototype.py (348 lines, 0% coverage)
3. ✅ Added OpenAI and Ollama API keys to CI workflow
4. ✅ Raised coverage threshold from 66% to 80%

Expected Result

Calculated coverage: 82.8% (should pass 80% threshold)

• Old: 5784 total lines, 1961 missed = 66.1%
• Removed: 1165 lines of dead code (100% uncovered)
• New: 4619 total lines, 796 missed = 82.8%

This PR will be closed after verification.

🤖 Generated with Claude Code

[miams]

✅ Coverage verified: 83.26% (exceeds 80% threshold)

Dead code removal was successful:

• Removed 1165 lines of uncovered code
• Coverage improved from 66.1% → 83.26%
• All tests passing

Closing this verification PR.