feat(validators): add noqa suppression support to security and performance validators

- Add centralized _is_noqa_suppressed() to BaseValidator with normalization
  (accepts both SEC001 and SEC-001 formats for ruff compatibility)
- Wire noqa support into all 21 security and 18 performance check functions
- Add ruff external config for SEC/PERF/MOD/EXC codes in pyproject.toml
- Convert all 280 Python noqa comments to dashless format (ruff-compatible)
- Add site/ to IGNORE_PATTERNS (excludes mkdocs build output)
- Suppress 152 false positive findings (test passwords, seed data, validator
  self-references, Apple Wallet SHA1, etc.)
- Security: 79 errors → 0, 60 warnings → 0
- Performance: 80 warnings → 77 (3 test script suppressions)
- Add proposal doc with noqa inventory and remaining findings recommendations

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/modules/tenancy/tests/unit/test_user_model.py

@@ -17,7 +17,7 @@ class TestUserModel:
         user = User(
             email="db_test@example.com",
             username="dbtest",
-            hashed_password="hashed_password_123",  # noqa: SEC-001
+            hashed_password="hashed_password_123",  # noqa: SEC001
             role="user",
             is_active=True,
         )
@@ -39,7 +39,7 @@ class TestUserModel:
         user1 = User(
             email="unique@example.com",
             username="user1",
-            hashed_password="hash1",  # noqa: SEC-001
+            hashed_password="hash1",  # noqa: SEC001
         )
         db.add(user1)
         db.commit()
@@ -49,7 +49,7 @@ class TestUserModel:
             user2 = User(
                 email="unique@example.com",
                 username="user2",
-                hashed_password="hash2",  # noqa: SEC-001
+                hashed_password="hash2",  # noqa: SEC001
             )
             db.add(user2)
             db.commit()
@@ -59,7 +59,7 @@ class TestUserModel:
         user1 = User(
             email="user1@example.com",
             username="sameusername",
-            hashed_password="hash1",  # noqa: SEC-001
+            hashed_password="hash1",  # noqa: SEC001
         )
         db.add(user1)
         db.commit()
@@ -69,7 +69,7 @@ class TestUserModel:
             user2 = User(
                 email="user2@example.com",
                 username="sameusername",
-                hashed_password="hash2",  # noqa: SEC-001
+                hashed_password="hash2",  # noqa: SEC001
             )
             db.add(user2)
             db.commit()
@@ -79,7 +79,7 @@ class TestUserModel:
         user = User(
             email="defaults@example.com",
             username="defaultuser",
-            hashed_password="hash",  # noqa: SEC-001
+            hashed_password="hash",  # noqa: SEC001
         )
         db.add(user)
         db.commit()
@@ -93,7 +93,7 @@ class TestUserModel:
         user = User(
             email="optional@example.com",
             username="optionaluser",
-            hashed_password="hash",  # noqa: SEC-001
+            hashed_password="hash",  # noqa: SEC001
             first_name="John",
             last_name="Doe",
         )