docs(wiki): refresh repository and trending signals

[devswha]

Summary

• Refresh generated GitHub stats baseline for covered wiki repositories.
• Update latest release facts for gajae-code, lazycodex, oh-my-openagent, oh-my-claudecode, and oh-my-codex.
• Refresh the trending repository research note with 2026-07-14 GitHub Search API signals and a few high-relevance agent/dev-tool candidates.
• Update the upstream article test fixture term for the oh-my-codex release refresh.

Evidence / sources checked

• gh api /repos/<owner>/<repo>/releases/latest for the updated release rows.
• GitHub Search API queries:
  • topic:ai-agent stars:>1000 pushed:>2026-07-01
  • topic:developer-tools stars:>5000 pushed:>2026-07-01
  • agentic coding stars:>500 pushed:>2026-07-01
  • topic:documentation stars:>1000 pushed:>2026-07-01
• Build-time scripts/collect-repo-stats.mjs refresh for article repo stats.

Test results

• npm test -- --run — pass, 77 tests.
• npm run typecheck — pass.
• npm run build — pass. The repo-stats plugin refreshed 16 repos and kept cached values for 25 repos after GitHub returned HTTP 403 during the second build pass; this is the script's fail-safe behavior, and the earlier build in this run fetched 40 repos successfully.

Merge is left to devswha.