Adding longer database wait time

.claude/settings.local.json

@@ -10,7 +10,8 @@
       "Bash(python *)",
       "Bash(DATABASE_URL=\"sqlite+aiosqlite:////tmp/claude-1000/-home-iroddis-dev-armament-fitguide/41e5e14d-88fe-45e7-ba3a-be5a2cbde2cd/scratchpad/mig_test.db\" uv run alembic upgrade head)",
       "Bash(sqlite3 /tmp/claude-1000/-home-iroddis-dev-armament-fitguide/41e5e14d-88fe-45e7-ba3a-be5a2cbde2cd/scratchpad/mig_test.db '.schema users')",
-      "Bash(docker build *)"
+      "Bash(docker build *)",
+      "Bash(git status *)"
     ]
   }
 }

.gitignore

@@ -10,6 +10,8 @@ venv/
 
 # Databases
 *.db
+*.db-shm
+*.db-wal
 *.sqlite3
 
 # Test / tooling

app/core/database.py

@@ -5,6 +5,7 @@ Works with SQLite (aiosqlite) or Postgres (asyncpg) depending on DATABASE_URL.
 
 from collections.abc import AsyncGenerator
 
+from sqlalchemy import event
 from sqlalchemy.ext.asyncio import (
     AsyncSession,
     async_sessionmaker,
@@ -21,6 +22,19 @@ class Base(DeclarativeBase):
 
 engine = create_async_engine(settings.database_url, echo=settings.debug, future=True)
 
+if engine.sync_engine.dialect.name == "sqlite":
+
+    @event.listens_for(engine.sync_engine, "connect")
+    def _set_sqlite_pragma(dbapi_connection, connection_record) -> None:
+        """WAL mode lets readers/writers avoid blocking each other; busy_timeout
+        makes a connection wait for a lock instead of immediately raising
+        "database is locked" (the pysqlite/aiosqlite default is 0ms).
+        """
+        cursor = dbapi_connection.cursor()
+        cursor.execute("PRAGMA journal_mode=WAL")
+        cursor.execute("PRAGMA busy_timeout=5000")
+        cursor.close()
+
 AsyncSessionLocal = async_sessionmaker(
     engine,
     class_=AsyncSession,

app/services/augmented_part_sync.py

@@ -52,8 +52,10 @@ MM_PER_INCH = 25.4
 # e.g.
 #   M8-1.25    - 8mm OD, 1.25 mm pitch
 #   M8 x 1.25
+#   M50x.75    - No leading digit on floats
+#  Float pattern: \d*\.?\d+
 _ISO_THREAD_RE = re.compile(
-    r"^M\s*(?P<diameter>\d+(?:\.\d+)?)\s*[xX-]\s*(?P<pitch>\d+(?:\.\d+)?)(?P<extra>.*)$"
+    r"^M\s*(?P<diameter>\d*\.?\d+)\s*[xX-]\s*P?(?P<pitch>\d*\.?\d+)(?P<extra>.*)$"
 )
 
 # e.g.
@@ -63,7 +65,7 @@ _ISO_THREAD_RE = re.compile(
 #
 # Leading digit / period, one or more digits, a dash, then
 _UNC_THREAD_RE = re.compile(
-    r"^(?P<diameter>\d+(?:\.\d+)?(?:/\d+)?)\s*-\s*(?P<tpi>\d+)"
+    r"^(?P<diameter>\d*\.?\d+)\s*-\s*(?P<tpi>\d*\.?\d+)"
     r"\s*(?P<series>UNEF|UNC|UNF|UNS|UN)?$",
     re.IGNORECASE,
 )