fix: extract hardcoded values to config, clean up bare pass (#776, #778, #782) (#793)

Co-authored-by: Perplexity Computer <perplexity@tower.local>
Co-committed-by: Perplexity Computer <perplexity@tower.local>

src/timmy/memory_system.py

@@ -20,6 +20,7 @@ from dataclasses import dataclass, field
 from datetime import UTC, datetime, timedelta
 from pathlib import Path
 
+from config import settings
 from timmy.memory.embeddings import (
     EMBEDDING_DIM,
     EMBEDDING_MODEL,  # noqa: F401 — re-exported for backward compatibility
@@ -111,7 +112,7 @@ def get_connection() -> Generator[sqlite3.Connection, None, None]:
     with closing(sqlite3.connect(str(DB_PATH))) as conn:
         conn.row_factory = sqlite3.Row
         conn.execute("PRAGMA journal_mode=WAL")
-        conn.execute("PRAGMA busy_timeout=5000")
+        conn.execute(f"PRAGMA busy_timeout={settings.db_busy_timeout_ms}")
         _ensure_schema(conn)
         yield conn
 
@@ -949,7 +950,7 @@ class SemanticMemory:
             with closing(sqlite3.connect(str(self.db_path))) as conn:
                 conn.row_factory = sqlite3.Row
                 conn.execute("PRAGMA journal_mode=WAL")
-                conn.execute("PRAGMA busy_timeout=5000")
+                conn.execute(f"PRAGMA busy_timeout={settings.db_busy_timeout_ms}")
                 # Ensure schema exists
                 conn.execute("""
                     CREATE TABLE IF NOT EXISTS memories (