Add CP→CA→PI platform foundation on MapMil monorepo.

Unify parsing workers, analytics API with PostgreSQL, map UI, and PI distribution into centers/ with Docker Compose.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/models.py

@@ -0,0 +1,47 @@
+from datetime import datetime, timezone
+
+from sqlalchemy import DateTime, Float, ForeignKey, Integer, String, Text
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from .database import Base
+
+
+class MapObject(Base):
+    __tablename__ = "map_objects"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, index=True)
+    name: Mapped[str] = mapped_column(String(255), nullable=False)
+    description: Mapped[str] = mapped_column(Text, default="")
+    type: Mapped[str] = mapped_column(String(50), nullable=False)
+    latitude: Mapped[float] = mapped_column(Float, nullable=False)
+    longitude: Mapped[float] = mapped_column(Float, nullable=False)
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime,
+        default=lambda: datetime.now(timezone.utc),
+    )
+
+    media: Mapped[list["ObjectMedia"]] = relationship(
+        back_populates="object",
+        cascade="all, delete-orphan",
+    )
+
+
+class ObjectMedia(Base):
+    __tablename__ = "object_media"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, index=True)
+    object_id: Mapped[int] = mapped_column(
+        ForeignKey("map_objects.id", ondelete="CASCADE"),
+        nullable=False,
+        index=True,
+    )
+    stored_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    original_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    content_type: Mapped[str] = mapped_column(String(100), nullable=False)
+    size: Mapped[int] = mapped_column(Integer, nullable=False)
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime,
+        default=lambda: datetime.now(timezone.utc),
+    )
+
+    object: Mapped["MapObject"] = relationship(back_populates="media")