feat: govern file lifecycle and connector writes

src/govoplan_files/backend/schemas.py

@@ -37,6 +37,7 @@ class FileConnectorSpaceCreateRequest(BaseModel):
     library_id: str | None = None
     remote_path: str = ""
     sync_mode: Literal["manual"] = "manual"
+    read_only: bool = True
     metadata: dict[str, Any] = Field(default_factory=dict)
 
 
@@ -45,6 +46,7 @@ class FileConnectorSpaceUpdateRequest(BaseModel):
     library_id: str | None = None
     remote_path: str | None = None
     sync_mode: Literal["manual"] | None = None
+    read_only: bool | None = None
     is_active: bool | None = None
     metadata: dict[str, Any] | None = None
 
@@ -192,6 +194,10 @@ class FileAssetResponse(BaseModel):
     created_at: str
     updated_at: str
     deleted_at: str | None = None
+    retained_until: str | None = None
+    legal_hold: bool = False
+    lifecycle_revision: int = 1
+    lifecycle_reason: str | None = None
     audit_relevant: bool = False
     metadata: dict[str, Any] | None = None
     source_provenance: FileSourceProvenance | None = None
@@ -477,6 +483,7 @@ class FileConnectorProviderResponse(BaseModel):
     installed: bool
     browse_supported: bool
     import_supported: bool
+    write_supported: bool = False
     optional_dependency: str | None = None
     permission_model: str
     sync_strategy: str
@@ -535,6 +542,24 @@ class FileConnectorSyncResponse(BaseModel):
     current_version_id: str
 
 
+class FileConnectorWriteRequest(BaseModel):
+    file_id: str
+    remote_path: str
+    idempotency_key: str = Field(min_length=8, max_length=160)
+    expected_revision: str | None = Field(default=None, max_length=500)
+
+
+class FileConnectorWriteResponse(BaseModel):
+    recovery_operation_id: str
+    status: str
+    replayed: bool = False
+    provider: str
+    remote_path: str
+    revision: str | None = None
+    checksum_sha256: str
+    size_bytes: int
+
+
 class BulkDeleteRequest(BaseModel):
     file_ids: list[str]
 
@@ -543,6 +568,69 @@ class BulkDeleteResponse(BaseModel):
     deleted_count: int
 
 
+class FileLifecycleUpdateRequest(BaseModel):
+    retained_until: datetime | None = None
+    legal_hold: bool = False
+    reason: str = Field(min_length=1, max_length=500)
+    expected_revision: int = Field(ge=1)
+
+
+class FileRestoreResponse(BaseModel):
+    restored_count: int
+
+
+class FileFolderRestoreResponse(BaseModel):
+    restored_folders: int
+    restored_files: int
+
+
+class FilePurgePreviewRequest(BaseModel):
+    file_ids: list[str] = Field(min_length=1, max_length=100)
+
+
+class FilePurgePreviewItem(BaseModel):
+    file_id: str
+    filename: str
+    lifecycle_revision: int
+    deleted_at: str | None = None
+    retained_until: str | None = None
+    legal_hold: bool = False
+    blockers: list[str] = Field(default_factory=list)
+    blob_ids: list[str] = Field(default_factory=list)
+
+
+class FilePurgePreviewResponse(BaseModel):
+    preview_sha256: str
+    eligible: bool
+    items: list[FilePurgePreviewItem]
+
+
+class FilePurgeExecuteRequest(FilePurgePreviewRequest):
+    preview_sha256: str = Field(min_length=64, max_length=64)
+    idempotency_key: str = Field(min_length=8, max_length=160)
+    approval_reference: str = Field(min_length=3, max_length=1000)
+    confirmation: Literal["PURGE"]
+
+
+class FilePurgeResponse(BaseModel):
+    recovery_operation_id: str
+    status: str
+    replayed: bool = False
+    purged_files: int = 0
+    released_blobs: int = 0
+
+
+class FileBlobGcRequest(BaseModel):
+    limit: int = Field(default=25, ge=1, le=100)
+    approval_reference: str = Field(min_length=3, max_length=1000)
+
+
+class FileBlobGcResponse(BaseModel):
+    inspected_blobs: int
+    deleted_blobs: int
+    unresolved_operation_ids: list[str] = Field(default_factory=list)
+
+
 class ConflictResolutionRequest(BaseModel):
     target_path: str
     action: Literal["overwrite", "rename", "skip"]