chore: remove uncertain orphaned definitions

Co-authored-by: Copilot App <[email protected]>

src/transcription/benchmarking.py

@@ -13,24 +13,6 @@ class BenchmarkModel(BaseModel):
     model_config = ConfigDict(extra="forbid", frozen=True)
 
 
-class BenchmarkItem(BenchmarkModel):
-    """One private benchmark item referenced by archival identity."""
-
-    source_id: UUID
-    source_digest_sha256: str = Field(pattern=r"^[0-9a-f]{64}$")
-    categories: frozenset[str] = Field(min_length=1)
-    reference_transcription: str = Field(min_length=1)
-
-
-class BenchmarkManifest(BenchmarkModel):
-    """Versioned private benchmark definition without copied source media."""
-
-    schema_name: str = "transcription.private-benchmark"
-    schema_version: str = "1"
-    name: str = Field(min_length=1)
-    items: tuple[BenchmarkItem, ...] = Field(min_length=1)
-
-
 class EditorialAssessment(BenchmarkModel):
     """Manually reviewed errors not represented adequately by CER or WER."""
 

src/transcription/db/engine.py

@@ -73,14 +73,3 @@ async def dispose_engine(database_url: str) -> None:
     engine = _ENGINES.pop(database_url, None)
     if engine is not None:
         await engine.dispose()
-
-
-async def dispose_all_engines() -> None:
-    while _ENGINES:
-        _, engine = _ENGINES.popitem()
-        await engine.dispose()
-
-
-async def refresh_engine(database_url: str) -> AsyncEngine:
-    await dispose_engine(database_url)
-    return get_engine(database_url)

src/transcription/ui/components/error_presenter.py

@@ -10,7 +10,6 @@ from typing import TypeVar
 from nicegui import ui
 
 from transcription.errors import AppError
-from transcription.errors import ErrorCategory
 from transcription.errors import canonical_error_category
 from transcription.errors import classify_unexpected_error
 
@@ -70,11 +69,3 @@ def show_error(exc: Exception, *, title: str, operation: str) -> None:
 def display_error_category(error: AppError) -> str:
     """Return the canonical UI-facing category label for an AppError."""
     return canonical_error_category(error)
-
-
-def summarize_error(exc: Exception, *, operation: str) -> str:
-    """Return short one-line summary for status labels."""
-    error = to_app_error(exc, operation=operation)
-    if error.category == ErrorCategory.INTERNAL_UNEXPECTED:
-        return f"Unexpected error (ref: {error.error_id})"
-    return f"{error.message} (ref: {error.error_id})"