Add molt — coding agent that won't say done on a false claim

[solvyxtech]

Summary

Adds a YAML tool card for molt under the agent category and regenerates the README.

• Card: data/tools/molt.yaml
• Binary: molt
• Summary: Coding agent that won't say done on a false claim; checks pass on disk or it refuses.
• Homepage: https://github.com/solvyxtech/molt
• Docs/studio: https://solvyx.xyz/work/molt
• Risk: high (same pattern as other coding-agent CLIs: execute_code / write_files / network / secret_exposure)

Checks

• python scripts/lint_registry.py → Validated 241 tool cards
• python scripts/generate_readme.py