docs(wiki): refresh agent repo release notes

[devswha]

Summary

• Refresh Gajae-Code, LazyCodex, and oh-my-openagent wiki articles with current release facts.
• Update modified timestamps for the touched articles.

Evidence / sources checked

• gh repo view and recent commits for devswha/patina, Yeachan-Heo/oh-my-codex, Yeachan-Heo/oh-my-claudecode, Yeachan-Heo/gajae-code, code-yeongyu/lazycodex, code-yeongyu/oh-my-openagent.
• GitHub Releases API for Yeachan-Heo/gajae-code v0.7.8, code-yeongyu/lazycodex v4.14.2, and code-yeongyu/oh-my-openagent v4.14.2.
• GitHub Search API for high-signal AI agent/devtool and docs/wiki tooling repositories; no new trending article added to avoid spammy churn.

Test results

• npm install
• npm test -- --run: 65 passed
• npm run typecheck: passed
• npm run build: passed
• git diff --check: passed

Merge is left to devswha.