service logic for facts, chunks, candidates, and current-approved-vs-target comparison

src/repo_registry/web_api/schemas.py

@@ -206,6 +206,16 @@ class CandidateGraphApproval(BaseModel):
     }
 
 
+class AnalysisRunChangeApproval(BaseModel):
+    notes: str = ""
+
+    model_config = {
+        "json_schema_extra": {
+            "examples": [{"notes": "Accept target run changes after review."}]
+        }
+    }
+
+
 class CandidateRejection(BaseModel):
     notes: str = ""
 
@@ -506,6 +516,31 @@ class CandidateGraphResponse(BaseModel):
     }
 
 
+class AnalysisRunDiffItemResponse(BaseModel):
+    change_type: str
+    item_type: str
+    key: str
+    base: dict[str, Any] | None = None
+    target: dict[str, Any] | None = None
+
+
+class AnalysisRunDiffSectionResponse(BaseModel):
+    added: list[AnalysisRunDiffItemResponse]
+    removed: list[AnalysisRunDiffItemResponse]
+    changed: list[AnalysisRunDiffItemResponse]
+    weakened: list[AnalysisRunDiffItemResponse]
+
+
+class AnalysisRunDiffResponse(BaseModel):
+    repository: RepositoryResponse
+    base_run: AnalysisRunResponse
+    target_run: AnalysisRunResponse
+    facts: AnalysisRunDiffSectionResponse
+    chunks: AnalysisRunDiffSectionResponse
+    candidates: AnalysisRunDiffSectionResponse
+    approved_entries: AnalysisRunDiffSectionResponse
+
+
 class EvidenceResponse(BaseModel):
     id: int
     type: str