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/compliance_checker.py

@@ -5,6 +5,7 @@
 """
 
 import re
+import json
 from typing import Dict, List, Tuple
 
 SENSITIVE_WORDS = {
@@ -125,7 +126,7 @@ def _load_platform_rules():
                 for r in rows:
                     try:
                         cfg = json.loads(r.config_data) if r.config_data else {}
-                    except:
+                    except Exception:
                         cfg = {}
                     if cfg:
                         result[r.platform] = cfg
@@ -511,7 +512,7 @@ class ComplianceChecker:
                 })
 
     def _check_timeliness(self, text: str):
-        years = re.findall(r'(19\d{2}|20[0-4]\d)', text)
+        years = re.findall(r'\b(19\d{2}|20[0-4]\d)\b', text)
         outdated = {y for y in years if int(y) < 2025}
         if outdated:
             self.issues.append({