* fix(shellcheck): declare and assign separately in router.sh (SC2155)
* feat(plugin): enhance context management and skill invocation
- Update .context-manifest.json to include profile and detailed source information.
- Revise context-scout.md to clarify context root discovery and navigation.
- Modify commands to replace deprecated skills with updated ones (brainstorming → approach, systematic-debugging → debugger).
- Streamline install-context.md for clarity and remove interactive profile selection.
- Improve oac-status.md to provide a more comprehensive status report.
- Add OAC system paths to session-start.sh for better context management.
- Remove obsolete skills and improve documentation for existing commands.
* fix(plugin): fix hook JSON escaping and unconditional session firing
- Fix double-escaped skill catalogue: use $'\n' real newlines instead of
literal \n strings so escape_for_json encodes them correctly as \n in JSON
- Fix OAC_SYSTEM_PATHS embedded raw into JSON string: build with real newlines
and pass through escape_for_json before interpolation
- Remove SessionStart matcher so hook fires on every session start
unconditionally (startup, resume, clear, compact and any future types)
- Remove redundant async:false field; add explicit timeout:30
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