chore: Bump version to 1.0.7

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -11,7 +11,7 @@
       "name": "ab",
       "source": "./plugin",
       "description": "Spec-driven build orchestration with git worktree isolation and session memory",
-      "version": "1.0.6",
+      "version": "1.0.7",
       "keywords": ["build", "spec", "automation", "worktree", "qa"]
     }
   ]