feat: Phase 3 — inspection templates (backend + frontend)

- Add InspectionTemplate and InspectionTemplateItem models
- Add 9 API endpoints for template CRUD and item management
- Add Alembic migration for inspection_templates tables
- Add 15 backend tests (39/39 total pass)
- Add TemplateEditor component with item management UI
- Add templates list, create, and edit pages
- Add tab bar, template grid, form row CSS classes
- Fix CORS middleware ordering in main.py
- Move CORS middleware before router registration

Co-Authored-By: Claude Opus 4 <noreply@anthropic.com>

src/database/models.py

@@ -14,7 +14,7 @@ from sqlalchemy import (
     text,
 )
 from sqlalchemy.dialects.postgresql import UUID, JSONB, TIMESTAMP
-from sqlalchemy.orm import relationship
+from sqlalchemy.orm import relationship, backref
 
 from src.database.config import Base
 
@@ -164,3 +164,72 @@ class PartReplacementLog(Base):
         Index("ix_part_replacement_tenant_part", "tenant_id", "equipment_part_id"),
         Index("ix_part_replacement_tenant_date", "tenant_id", "replaced_at"),
     )
+
+
+class InspectionTemplate(Base):
+    __tablename__ = "inspection_templates"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    tenant_id = Column(String(50), ForeignKey("tenants.id"), nullable=False)
+    name = Column(String(200), nullable=False)
+    subject_type = Column(String(20), nullable=False)  # equipment | product
+    machine_id = Column(UUID(as_uuid=True), ForeignKey("machines.id"), nullable=True)
+    product_code = Column(String(50), nullable=True)
+    schedule_type = Column(
+        String(20), nullable=False
+    )  # daily | weekly | monthly | yearly | ad_hoc
+    inspection_mode = Column(
+        String(20), default="measurement"
+    )  # checklist | measurement | monitoring
+    version = Column(Integer, default=1)
+    is_active = Column(Boolean, default=True)
+    created_at = Column(TIMESTAMP(timezone=True), default=utcnow)
+    updated_at = Column(TIMESTAMP(timezone=True), default=utcnow, onupdate=utcnow)
+
+    tenant = relationship("Tenant")
+    machine = relationship("Machine")
+    items = relationship(
+        "InspectionTemplateItem",
+        back_populates="template",
+        cascade="all, delete-orphan",
+        order_by="InspectionTemplateItem.sort_order",
+    )
+
+    __table_args__ = (
+        Index("ix_templates_tenant_subject", "tenant_id", "subject_type"),
+        Index("ix_templates_tenant_machine", "tenant_id", "machine_id"),
+    )
+
+
+class InspectionTemplateItem(Base):
+    __tablename__ = "inspection_template_items"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    template_id = Column(
+        UUID(as_uuid=True),
+        ForeignKey("inspection_templates.id", ondelete="CASCADE"),
+        nullable=False,
+    )
+    sort_order = Column(Integer, nullable=False)
+    name = Column(String(200), nullable=False)
+    category = Column(String(100), nullable=True)
+    data_type = Column(String(20), nullable=False)  # numeric | boolean | text | select
+    unit = Column(String(20), nullable=True)
+    spec_min = Column(Float, nullable=True)
+    spec_max = Column(Float, nullable=True)
+    warning_min = Column(Float, nullable=True)
+    warning_max = Column(Float, nullable=True)
+    trend_window = Column(Integer, nullable=True)
+    select_options = Column(JSONB, nullable=True)
+    equipment_part_id = Column(
+        UUID(as_uuid=True), ForeignKey("equipment_parts.id"), nullable=True
+    )
+    is_required = Column(Boolean, default=True)
+    created_at = Column(TIMESTAMP(timezone=True), default=utcnow)
+
+    template = relationship("InspectionTemplate", back_populates="items")
+    equipment_part = relationship("EquipmentPart")
+
+    __table_args__ = (
+        Index("ix_template_items_template_order", "template_id", "sort_order"),
+    )