feat: add project-scoped operations

app/domain/schemas/project_map_config.py

@@ -0,0 +1,29 @@
+from typing import Literal
+
+from pydantic import BaseModel, ConfigDict, Field, model_validator
+
+
+class PlaceSearchConfig(BaseModel):
+    model_config = ConfigDict(extra="forbid", str_strip_whitespace=True)
+
+    enabled: bool = False
+    provider: Literal["tianditu"] = "tianditu"
+    admin_code: str = Field(pattern=r"^(?:156)?[0-9]{6}$")
+    region: str = Field(min_length=1, max_length=100)
+
+
+class ProjectMapConfig(BaseModel):
+    # Preserve existing map options such as legend when editing search settings.
+    model_config = ConfigDict(extra="allow")
+
+    place_search: PlaceSearchConfig | None = None
+
+
+class ProjectMapConfigUpdate(BaseModel):
+    map_config: ProjectMapConfig | None = None
+
+    @model_validator(mode="after")
+    def reject_null_map_config(self):
+        if "map_config" in self.model_fields_set and self.map_config is None:
+            raise ValueError("map_config must be an object")
+        return self