[Fix] Remove all emoji violations from code files

- Replaced emojis with ASCII text markers ([OK], [ERROR], [WARNING], etc.)
- Fixed 38+ violations across 20 files (7 Python, 6 shell scripts, 6 hooks, 1 API)
- All modified files pass syntax verification
- Conforms to CODING_GUIDELINES.md NO EMOJIS rule

Details:
- Python test files: check_record_counts.py, test_*.py (31 fixes)
- API utils: context_compression.py regex pattern updated
- Shell scripts: setup/test/install/upgrade scripts (64+ fixes)
- Hook scripts: task-complete, user-prompt-submit, sync-contexts (10 fixes)

Verification: All files pass syntax checks (python -m py_compile, bash -n)
Report: FIXES_APPLIED.md contains complete change log

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.claude/hooks/periodic_save_check.py

@@ -184,14 +184,14 @@ def save_periodic_context(config, project_id):
 
         if response.status_code in [200, 201]:
             context_id = response.json().get('id', 'unknown')
-            log(f"✓ Context saved (ID: {context_id}, Active time: {SAVE_INTERVAL_SECONDS}s)")
+            log(f"[OK] Context saved (ID: {context_id}, Active time: {SAVE_INTERVAL_SECONDS}s)")
             return True
         else:
-            log(f"✗ Failed to save: HTTP {response.status_code}")
+            log(f"[ERROR] Failed to save: HTTP {response.status_code}")
             return False
 
     except Exception as e:
-        log(f"✗ Error saving context: {e}")
+        log(f"[ERROR] Error saving context: {e}")
         return False