fix(doctor): probe the Copilot hooks file where inject writes it

[SaulMoro]

Closes #732

Summary

doctor and inject resolved the Copilot hooks file to two different paths in a non-self project scope. inject writes it at the config scope; doctor joined the user-scope relative path onto the project base dir.

 buildHookChecks
-  for tool in hookToolPaths                      # every path at hook scope ('user')
+  for tool in toolPaths                          # config scope
     if paths.hooks                               # standalone file (Copilot)
       resolveToolBaseDir(tool, localConfig) + paths.hooks
-        # <projectRoot> + hooks/teamai.json  → never written → ✖
+        # <projectRoot> + .github/hooks/teamai.json  → what inject wrote
     else if settings
-      baseDir + paths.settings
+      baseDir + hookToolPaths[tool].settings     # hook scope, unchanged for claude/codex/cursor/…

hooks list already applied this rule (hooks-cmd.ts, hookScopedPaths[tool]?.settings); doctor now matches it. Note for #728: it adds the same parameter to buildHookChecks as part of toolRoots; the two will need a trivial rebase.

Evidence

• Before: new test checks project Copilot hooks where inject wrote them when userScope.hooks is set (project scope, toolPaths.copilot with both hooks and userScope.hooks, file present at <projectRoot>/.github/hooks/teamai.json):

  Expected: "✔"
  Received: "  ✖ teamai hooks in copilot settings"
  

  After: passes. npx vitest run → 271 files, 3875 passed, 1 skipped. npx tsc --noEmit clean.

• Before (real CLI, main at cd3e0e6, project scope, Copilot installed):

  ✖ teamai hooks in copilot settings
    → Run `teamai hooks inject` to inject/update hooks
  

  teamai hooks inject → ✔ Hooks injected into all AI tool settings; doctor still ✖.
  After (npm run build, same config):

  Scope: project (/Users/<me>/Repositorios/teamai-cli)
  ✔ teamai hooks in claude settings
  ✔ teamai hooks in codex settings
  ✔ teamai hooks in cursor settings
  ✔ teamai hooks in copilot settings
  ✔ teamai hooks in codebuddy settings
  ✔ All checks passed!
  

Test Plan

• npx tsc --noEmit
• npx vitest run (271 files, 3875 passed)
• npm run build then teamai doctor in a project-scope install (provider github) with Claude, Codex, Cursor, Copilot and CodeBuddy hooks injected: all five hook checks ✔
• Same install, teamai hooks list: copilot installed <project>/.github/hooks/teamai.json, consistent with doctor
• Existing user-scope Copilot test (checks standalone Copilot hooks under COPILOT_HOME) still green: $COPILOT_HOME/hooks/teamai.json unchanged

Merge Danger

Door: two-way

Read-only check; revert restores the previous probe path. No file is written.

Blast Radius: doctor

Only the Copilot row of the hook checks changes its path, and only when userScope.hooks differs from hooks in a non-self project scope. Settings-based tools keep the hook-scope path from #695. Also affects the post-pull check registry, which shares buildChecks.