fix: Script bug fixes (bare except, timezone, regex, test)

- collector.py, compliance_checker.py, trends.py: bare except -> specific
- db_helper.py: datetime.now() -> timezone.utc (8 occurrences)
- compliance_checker.py: regex \x08 -> \b word boundary + import json
- search_providers.py: minor fixes
- test_new_features.py: service reachability check retry

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

scripts/trends.py

@@ -274,7 +274,7 @@ def load_trends() -> List[Dict]:
             data = json.loads(TRENDS_FILE.read_text(encoding='utf-8'))
             if data.get("date") == TODAY:
                 return data.get("trends", [])
-        except:
+        except Exception:
             pass
     return []