feat: add ANTHROPIC_API_KEY config and AoiAdviceRequest model

app/config.py

@@ -19,6 +19,9 @@ OPENEO_BACKEND: str = os.environ.get(
 OPENEO_CLIENT_ID: str | None = os.environ.get("OPENEO_CLIENT_ID")
 OPENEO_CLIENT_SECRET: str | None = os.environ.get("OPENEO_CLIENT_SECRET")
 
+# Anthropic API key for AOI advisor (Claude-powered region insight).
+ANTHROPIC_API_KEY: str | None = os.environ.get("ANTHROPIC_API_KEY")
+
 # Expert weights for the visual overview composite score.
 # Normalized to 1.0. Indicators not selected or skipped are excluded
 # and weights are re-normalized.

app/models.py

@@ -146,3 +146,7 @@ class IndicatorMeta(BaseModel):
     category: str
     question: str
     estimated_minutes: int
+
+
+class AoiAdviceRequest(BaseModel):
+    bbox: list[float] = Field(min_length=4, max_length=4)