feat: v1.1.0 release - session ID tracking, async hooks, new skills

- Add session ID to session filenames (Issue #62)
- Add getSessionIdShort() helper for unique per-session tracking
- Add async hooks documentation with example
- Create iterative-retrieval skill for progressive context refinement
- Add continuous-learning-v2 skill with instinct-based learning
- Add ecc.tools ecosystem section to README
- Update skills list in README

All 67 tests passing.

hooks/hooks.json

@@ -88,6 +88,18 @@
         ],
         "description": "Log PR URL and provide review command after PR creation"
       },
+      {
+        "matcher": "tool == \"Bash\" && tool_input.command matches \"(npm run build|pnpm build|yarn build)\"",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "node -e \"let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{console.error('[Hook] Build completed - async analysis running in background');console.log(d)})\"",
+            "async": true,
+            "timeout": 30
+          }
+        ],
+        "description": "Example: async hook for build analysis (runs in background without blocking)"
+      },
       {
         "matcher": "tool == \"Edit\" && tool_input.file_path matches \"\\\\.(ts|tsx|js|jsx)$\"",
         "hooks": [