feat: suggest confirmed external aliases

apps/api/app/main.py

@@ -21,13 +21,13 @@ from sqlalchemy.orm import Session, joinedload
 from .activity import activity_rows
 from .database import get_session
 from .config import settings
-from .community_review import ExternalReviewError, map_observation, publish_observation, reject_observation
+from .community_review import ExternalReviewError, map_observation, publish_observation, reject_observation, suggest_aliases
 from .importer import ImportAlreadyRunning, ImportSourceError, import_records, normalize
 from .logging_config import configure_logging
 from .models import Bait, BaitKind, CatchReport, CommunityImportRun, DataSource, ExternalObservation, Fish, ModerationEvent, ModerationStatus, OfficialRecordImport, SourceType, Spot, SubmissionAttempt, Waterbody
 from .readiness import readiness_report
 from .public_cache import public_cache
-from .schemas import ActivityOut, AdminCatchReportOut, BaitOut, CatchOut, CatchReportAccepted, CatchReportCreate, CatchReportCreated, ExternalObservationDecision, ExternalObservationMapping, ExternalObservationOut, ExternalObservationPublished, FishOut, ImportRunOut, ModerationUpdate, OfficialRecordOut, PublicObservationOut, SourceStatusOut, SpotOut, WaterbodyOut
+from .schemas import ActivityOut, AdminCatchReportOut, BaitOut, CatchOut, CatchReportAccepted, CatchReportCreate, CatchReportCreated, ExternalAliasSuggestionOut, ExternalObservationDecision, ExternalObservationMapping, ExternalObservationOut, ExternalObservationPublished, FishOut, ImportRunOut, ModerationUpdate, OfficialRecordOut, PublicObservationOut, SourceStatusOut, SpotOut, WaterbodyOut
 from .storage import ScreenshotError, client as storage_client, delete_screenshot, signed_screenshot_url, upload_screenshot
 
 
@@ -351,6 +351,20 @@ def admin_external_observations(
     return [_external_out(item) for item in items]
 
 
+@app.get("/api/v1/admin/external-observations/{observation_id}/alias-suggestions", response_model=ExternalAliasSuggestionOut)
+def admin_external_alias_suggestions(
+    observation_id: UUID, db: Db, _: Annotated[str, Depends(_admin)],
+) -> ExternalAliasSuggestionOut:
+    observation = db.get(ExternalObservation, observation_id)
+    if observation is None:
+        raise HTTPException(status_code=404, detail="external observation not found")
+    fish, waterbody = suggest_aliases(db, observation)
+    return ExternalAliasSuggestionOut(
+        fish_slug=fish.slug if fish else None,
+        waterbody_slug=waterbody.slug if waterbody else None,
+    )
+
+
 @app.patch("/api/v1/admin/external-observations/{observation_id}/mapping", response_model=ExternalObservationOut)
 def admin_map_external_observation(
     observation_id: UUID, payload: ExternalObservationMapping, db: Db,