fix: resolve ESLint errors and update tests for project-name fallback

- Fix 16 ESLint no-unused-vars errors across hook scripts and tests
- Add eslint-disable comment for intentional control-regex in ANSI stripper
- Update session file test to use getSessionIdShort() instead of hardcoded 'default'
  (reflects PR #110's project-name fallback behavior)
- Add marketing/ to .gitignore (local drafts)
- Add skill-create-output.js (terminal output formatter)

All 69 tests now pass. CI should be green.

scripts/hooks/check-console-log.js

@@ -52,7 +52,7 @@ process.stdin.on('end', () => {
     if (hasConsole) {
       console.error('[Hook] Remove console.log statements before committing');
     }
-  } catch (error) {
+  } catch (_error) {
     // Silently ignore errors (git might not be available, etc.)
   }