feat(filesystem): add PageIndex FileSystem and PIFS CLI

.github/workflows/codeql.yml

@@ -14,7 +14,7 @@ permissions:
   actions: read
 
 jobs:
-  analyze:
+  analyze-actions:
     name: Analyze (actions)
     runs-on: ubuntu-latest
     timeout-minutes: 30
@@ -32,3 +32,22 @@ jobs:
         uses: github/codeql-action/analyze@v4
         with:
           category: /language:actions
+
+  analyze-python:
+    name: Analyze (python)
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v4
+        with:
+          languages: python
+          build-mode: none
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v4
+        with:
+          category: /language:python

.gitignore

@@ -3,4 +3,8 @@ __pycache__
 .DS_Store
 .env*
 .venv/
+.claude/
+.codex/
 logs/
+examples/pifs_workspace/
+examples/Benchmark/