Added gitleaks

.gitleaks.toml

@@ -18,7 +18,8 @@ tags = ["credentials", "url"]
 
 [rules.allowlist]
 # Skip well-known dummy/example creds that legitimately appear in docs
-# and test fixtures. Extend as new false positives show up.
+# and test fixtures, and template-literal interpolations in source code
+# (e.g. `http://${user}:${password}@...` — not an actual credential).
 regexes = [
     '''https?://user:pass(word)?@''',
     '''https?://admin:admin@''',
@@ -27,6 +28,10 @@ regexes = [
     '''https?://foo:bar@''',
     '''https?://[^:]+:password@''',
     '''https?://[^:]+:secret@''',
+    # JS template literal  http://${user}:${password}@
+    '''https?://\$\{[^}]+\}:\$\{[^}]+\}@''',
+    # Python f-string      http://{username}:{password}@
+    '''https?://\{[^}]+\}:\{[^}]+\}@''',
 ]
 
 # ── Global allowlist ─────────────────────────────────────────────────────
@@ -39,4 +44,8 @@ paths = [
     '''frontend/node_modules/.*''',
     '''backend/tests/fixtures/.*''',
     '''static/assets/.*''',   # bundled frontend build output (minified JS/CSS)
+    # Historical log file (deleted in working tree, still in git history).
+    # Credentials inside have been rotated; allowlisted to keep future scans
+    # from re-surfacing them as noise.
+    '''bambutrack\.log\.1$''',
 ]