fix(docs): convert cross-tree hand-written links to GitHub source (#2113)

[bdfinst]

Summary

• 9 hand-written docs pages under plugins/dev-team/docs/ linked into skills/, agents/, commands/, knowledge/, hooks/, and scripts/ via relative ../<dir>/... paths. scripts/assemble-docs.sh never copies those directories into the published MkDocs site (_mkdocs_src) — only each plugin's own docs/ — so every one of those links resolves in a repo checkout but 404s on https://devteam.bryanfinster.com/. Same root cause and fix as docs: Links to skills on https://devteam.bryanfinster.com/plugins/dev-team/docs/skills/ lead to 404 #2103's generated skills.md catalog.
• Converted all 133 real cross-tree links (agent_info.md, test-evaluation.md, triage-workflow.md, code-review-process.md, developer-notes.md, workflows.md, agent-architecture.md, context-management.md, test-improve.md) to GitHub source links. Left one template placeholder (../skills/{file}.md inside a fenced code example in agent_info.md) untouched.

Not included in this PR — blocked on permissions

Issue #2113 also asks to close the CI gap: link-check.yml's nav-integrity job already runs mkdocs build against the assembled site, so a small advisory step there (never blocking — a first local run found 60 more pre-existing broken links/anchors spanning many other files, filed as #2118, so hard-failing today would deadlock every unrelated PR) would report the count. I prepared and verified this change locally, but this session's git/API credentials lack the workflow OAuth scope needed to push a .github/workflows/*.yml change (both git push and the GitHub API content-write calls were rejected/failed for that reason). The exact diff is ready — happy to apply it once given workflow scope, or a maintainer can paste it in directly. The change is a single new step appended to the existing nav-integrity job in .github/workflows/link-check.yml; ask and I'll paste the full file content again here.

Test Plan

• python3 scripts/check_md_references.py — clean
• Full local suite: python3 -m pytest plugins/dev-team/tests tests/repo tests/agents tests/commands tests/docs tests/knowledge tests/stack_aware tests/skills tests/scripts tests/hooks -q -n auto --dist loadgroup — 10,359 passed, 0 failed
• scripts/ci-local.sh (full local CI mirror, run by pre-push) — all checks green
• Verified no cross-tree relative links remain in the 9 files (only the intentional code-block placeholder)

Closes #2113

🤖 Generated with Claude Code

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