v1.14.0 — add Step 3b review workflow, unify file naming, resilient code references

- Add /plan2code-3b-review: 5-step post-implementation review with adaptive
  scope, 11 dimensions, reference-file architecture, and Plan/Apply/Verify fixes
- Unify workflow/skill file naming to single-dash (drop -- and --- conventions)
- Add Devin platform support and CLAUDE.md MANDATORY FIRST STEP template
- Guide agents to use semantic anchors over line numbers in workflow prompts
- Bump version to 1.14.0

scripts/validate-char-count.js

@@ -6,6 +6,9 @@ const path = require('path');
 const CHAR_LIMIT = 11000;
 const srcDir = path.join(__dirname, '..', 'src');
 
+// Note: readdirSync is non-recursive, so files in subdirectories like
+// plan2code-3b-review-references/ are automatically excluded from
+// the character limit check. Reference files have no char limit.
 const files = fs.readdirSync(srcDir)
   .filter(f => f.startsWith('plan2code-') && f.endsWith('.md'))
   .sort();