feat: complete 5 GAP requirements — auto counters, inspection alarms, machine specs, responsive CSS

- GAP 2+4: auto_time/date counter auto-computation with manual update blocking
- GAP 3: auto-generate alarms on inspection completion for failed items
- GAP 1: machine spec fields (manufacturer, location, capacity, power, description)
- GAP 5: enhanced mobile responsive CSS (768px/480px breakpoints)
- Alembic migration for new columns, seed data enriched with specs and date-type parts

src/api/alarms.py

@@ -8,7 +8,16 @@ from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import selectinload
 
 from src.database.config import get_db
-from src.database.models import Alarm, EquipmentPart, PartCounter, Machine
+from src.database.models import (
+    Alarm,
+    EquipmentPart,
+    PartCounter,
+    Machine,
+    InspectionSession,
+    InspectionRecord,
+    InspectionTemplate,
+    InspectionTemplateItem,
+)
 from src.auth.models import TokenData
 from src.auth.dependencies import require_auth, verify_tenant_access
 
@@ -27,12 +36,19 @@ def _alarm_to_dict(alarm: Alarm) -> dict:
     return {
         "id": str(alarm.id),
         "tenant_id": str(alarm.tenant_id),
-        "equipment_part_id": str(alarm.equipment_part_id),
-        "machine_id": str(alarm.machine_id),
+        "equipment_part_id": str(alarm.equipment_part_id)
+        if alarm.equipment_part_id
+        else None,
+        "machine_id": str(alarm.machine_id) if alarm.machine_id else None,
+        "inspection_session_id": str(alarm.inspection_session_id)
+        if alarm.inspection_session_id
+        else None,
         "alarm_type": str(alarm.alarm_type),
         "severity": str(alarm.severity),
         "message": str(alarm.message),
-        "lifecycle_pct_at_trigger": float(alarm.lifecycle_pct_at_trigger),
+        "lifecycle_pct_at_trigger": float(alarm.lifecycle_pct_at_trigger)
+        if alarm.lifecycle_pct_at_trigger is not None
+        else None,
         "is_acknowledged": bool(alarm.is_acknowledged),
         "acknowledged_by": str(alarm.acknowledged_by)
         if alarm.acknowledged_by
@@ -182,3 +198,33 @@ async def generate_alarms_for_part(
         lifecycle_pct_at_trigger=pct,
     )
     db.add(alarm)
+
+
+async def generate_alarms_for_inspection(
+    db: AsyncSession,
+    tenant_id: str,
+    session: InspectionSession,
+    fail_records: list,
+    template_name: str,
+):
+    if not fail_records:
+        return
+
+    fail_count = len(fail_records)
+    severity = "critical" if fail_count >= 3 else "warning"
+
+    for record, item_name, spec_info in fail_records:
+        message = (
+            f"검사 '{template_name}'의 '{item_name}' 항목이 불합격입니다 ({spec_info})"
+        )
+        if len(message) > 500:
+            message = message[:497] + "..."
+
+        alarm = Alarm(
+            tenant_id=tenant_id,
+            inspection_session_id=session.id,
+            alarm_type="inspection_fail",
+            severity=severity,
+            message=message,
+        )
+        db.add(alarm)