fix: address Devin Review findings - commit gate fail-open + total_tests count

- check_uncommitted() now validates git status returncode before parsing output
- Updated metadata.total_tests from 115 to 116 to reflect F_GRAPHICS_002 addition

Co-Authored-By: Tony Ha <aidoruao@gmail.com>

Author: devin-ai-integration[bot]

automation/zed_commit_gate.py

@@ -22,6 +22,10 @@ def check_uncommitted():
         ["git", "status", "--porcelain"],
         capture_output=True, text=True
     )
+    if result.returncode != 0:
+        print(f"COMMIT GATE: ERROR - git status failed (exit code {result.returncode})")
+        print(f"stderr: {result.stderr.strip()}")
+        sys.exit(2)
     return [
         line for line in result.stdout.strip().split("\n")
         if line.strip()

ontology/falsification_tests.json

@@ -4,7 +4,7 @@
     "description": "Machine-readable falsification test registry. Each entry defines a falsifiable assumption, the strategy for testing it, and mappings to domains, OI-IDs, and case studies. Tests are assigned F-IDs and can be referenced by test files via the @falsification_id tag.",
     "created": "2026-03-02",
     "tagging_convention": "Add a comment '# @falsification_id: F_XXX_NNN' at the top of any test that implements or covers a falsification test listed here.",
-    "total_tests": 115
+    "total_tests": 116
   },
   "falsification_tests": [
     {