* fix(install): resolve non-.md context paths like paths.json (closes#251)
resolve_component_path() was appending .md to all slash-containing context
IDs, so context:core/config/paths.json was looked up as paths.json.md and
returned empty, triggering the 'Could not find path' warning on install.
Now tries the .md path first (preserving existing behaviour for all markdown
context files), then falls back to the bare path for non-markdown files.
* fix(shellcheck): use read -ra for word-split array assignment (SC2206)
Replace local arr=($var) with read -ra arr <<< "$var" in
install-context.sh to satisfy ShellCheck SC2206 and unblock CI.
* 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.
