refactor: CI optimization, logging improvements, and codebase formatting (#456)

* fix(db): remove unique constraint on folder to support multi-channel agents

* ci: implement automated skill drift detection and self-healing PRs

* fix: align registration logic with Gavriel's feedback and fix build/test issues from Daniel Mi

* style: conform to prettier standards for CI validation

* test: fix branch naming inconsistency in CI (master vs main)

* fix(ci): robust module resolution by removing file extensions in scripts

* refactor(ci): simplify skill validation by removing redundant combination tests

* style: conform skills-engine to prettier, unify logging in index.ts and cleanup unused imports

* refactor: extract multi-channel DB changes to separate branch

Move channel column, folder suffix logic, and related migrations
to feat/multi-channel-db-v2 for independent review. This PR now
contains only CI/CD optimizations, Prettier formatting, and
logging improvements.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

skills-engine/constants.ts

@@ -8,4 +8,9 @@ export const SKILLS_SCHEMA_VERSION = '0.1.0';
 
 // Top-level paths to include in base snapshot and upstream extraction.
 // Add new entries here when new root-level directories/files need tracking.
-export const BASE_INCLUDES = ['src/', 'package.json', '.env.example', 'container/'];
+export const BASE_INCLUDES = [
+  'src/',
+  'package.json',
+  '.env.example',
+  'container/',
+];