Bump version to 0.1.1 (#156)

Includes: clone-based agent isolation (fixes getDiff bug), README
updates, DEP0190 security fix, release workflow fix.

Co-authored-by: unknown <that-github-user@github.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 3 people

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "thinktank-ai",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "Ensemble AI coding — run N parallel Claude Code agents, select the best result via Copeland pairwise scoring",
   "type": "module",
   "bin": {