Harden runtime operations, status checks, and project cleanup

[gnezim]

Summary

• Add launchd restart logging for gateway/oMLX scripts and include oMLX/Olla version details in status output.
• Harden edge and runtime operations, remote health checks, routing smoke tests, SSH behavior, and runtime config parsing.
• Clean stale project maintenance surfaces: operator docs, unused serving schema, dependency groups, lint suppressions, and obsolete config ignores.
• Extract remote artifact cache command generation into a tested module while preserving the generated shell command behavior.

Local Commit Range

This PR branch contains the local history requested from 8a4f18017d275c1b7e91c4f7944cc8a1b0d71236 through 847d8e35e47247e35c1178ad1a3b036f1ab55b7a:

• 8a4f180 feat: add logging for launchd restart in gateway and omlx scripts
• f764df7 fix: harden edge and runtime operations
• 5f013f2 feat: add oMLX and Olla versions in status
• 20e4f05 fix: harden remote checks and routing smoke tests
• 9f64f71 chore: merge origin main
• 05fdb32 fix: address project review findings
• 847d8e3 fix: address project review findings

GitHub Delta Note

origin/main already contains 8a4f180 and 5f013f2, so GitHub's PR commit list shows only commits not already reachable from main:

• f764df7 fix: harden edge and runtime operations
• 20e4f05 fix: harden remote checks and routing smoke tests
• 9f64f71 chore: merge origin main
• 05fdb32 fix: address project review findings
• 847d8e3 fix: address project review findings

Test Plan

Verified before pushing this PR branch:

• uv lock --check
• git diff --check
• uv run ruff check .
• uv run pytest -q (267 passed)
• uv run python -m compileall -q src tests
• uv build --out-dir /tmp/thunder-forge-build-check