Drop the legacy comment tables and the backend module that served them

The submissions system (form_configs/submissions/submissions_content) and
comments.district_notes replaced everything these did.

- Alembic d8f1b52c96e3 drops comments.{document_comment, comment_tag,
  comment, tag, commenter}, the review_status_enum type, and the
  slugify_tag/normalize_email UDFs. Zone rows were copied into
  district_notes earlier (b3d9f47a25c1); form comments are dropped
  without migration by decision. Downgrade raises — restore from backup.
- backend/app/comments is deleted: the piecemeal create endpoints,
  /submit, both admin lists, /admin/review, the review_tags enforcement,
  and /flag (replaced by /api/submissions/flag). The historical
  f57e30842bde migration inlines the enum values it used to import.
- The gallery tag filter reads only comments.submissions now.
- Tests: test_comments.py retired with the module; the auth contract
  pins the teams claim instead of review_tags; the connection-pool
  regression check moved to moderate_note_by_id; test_main's gallery
  test submits through /api/submissions.
- Frontend: legacy comment/commenter wire types pruned.

Deploy last, after confirming no traffic on the old endpoints.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: nofurtherinformation

app/src/app/utils/api/apiHandlers/types.ts

@@ -173,28 +173,11 @@ export type MapGroup = {
   slug: string;
 };
 
-export interface CommentCreate {
-  title: string;
-  comment: string;
-  commenter_id: number | null;
-  document_id: string | null;
-}
-
 export interface CommentPublic {
   created_at: string | null;
   updated_at: string | null;
 }
 
-export interface CommenterCreate {
-  first_name: string;
-  email: string;
-  salutation: string | null;
-  last_name: string | null;
-  place: string | null;
-  state: string | null;
-  zip_code: string | null;
-}
-
 export interface CommenterPublic {
   created_at: string | null;
   updated_at: string | null;
@@ -208,19 +191,6 @@ export interface TagCreate {
   tag: string;
 }
 
-export interface FullCommentForm {
-  comment: CommentCreate;
-  commenter: CommenterCreate;
-  tags: TagCreate[];
-  turnstile_token: string;
-}
-
-export interface FullCommentFormResponse {
-  comment: CommentPublic;
-  commenter: CommenterPublic;
-  tags: TagPublic[];
-}
-
 export interface Overlay {
   overlay_id: string;
   name: string;

backend/app/alembic/env.py

@@ -18,13 +18,6 @@
     DistrictUnions,
 )
 from app.save_share.models import MapDocumentToken
-from app.comments.models import (
-    Comment,
-    Commenter,
-    Tag,
-    CommentTag,
-    DocumentComment,
-)
 from app.district_notes import DistrictNote
 from app.evaluation.models import Evaluation
 from app.submissions.models import FormConfig, Submission, SubmissionContent
@@ -48,11 +41,6 @@
     Document,
     MapDocumentUserSession,
     MapDocumentToken,
-    Comment,
-    Commenter,
-    Tag,
-    CommentTag,
-    DocumentComment,
     DistrictNote,
     FormConfig,
     Submission,

backend/app/alembic/versions/d8f1b52c96e3_drop_legacy_comment_tables.py

@@ -0,0 +1,45 @@
+"""Drop the legacy comment tables
+
+The flexible submissions schema (c7e2a94d81f5) and district_notes
+(b3d9f47a25c1) replaced everything these tables did; the backend module that
+served them (app/comments) is deleted in the same change. Zone rows were
+copied into district_notes by b3d9f47a25c1; form comments/commenters/tags are
+dropped without migration by decision.
+
+Irreversible: downgrade raises. Restore from a backup if this ever needs
+undoing.
+
+Revision ID: d8f1b52c96e3
+Revises: c7e2a94d81f5
+Create Date: 2026-08-25
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision: str = "d8f1b52c96e3"
+down_revision: Union[str, None] = "c7e2a94d81f5"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.drop_table("document_comment", schema="comments")
+    op.drop_table("comment_tag", schema="comments")
+    op.drop_table("comment", schema="comments")
+    op.drop_table("tag", schema="comments")
+    op.drop_table("commenter", schema="comments")
+    op.execute(sa.text("DROP TYPE IF EXISTS comments.review_status_enum"))
+    op.execute(sa.text("DROP FUNCTION IF EXISTS slugify_tag(TEXT)"))
+    # normalize_email's trigger went down with the commenter table.
+    op.execute(sa.text("DROP FUNCTION IF EXISTS normalize_email()"))
+
+
+def downgrade() -> None:
+    raise NotImplementedError(
+        "The legacy comment tables are gone for good — restore from a backup."
+    )

backend/app/alembic/versions/f57e30842bde_comment_moderation.py

@@ -10,16 +10,19 @@
 
 from alembic import op
 import sqlalchemy as sa
-from app.comments.models import ReviewStatus
 
 # revision identifiers, used by Alembic.
 revision: str = "f57e30842bde"
 down_revision: Union[str, None] = "55cc04197c66"
 branch_labels: Union[str, Sequence[str], None] = None
 depends_on: Union[str, Sequence[str], None] = None
 
+# Inlined (the app-side ReviewStatus enum was deleted with the legacy
+# comment tables; this historical migration must stay runnable).
 review_status_enum = sa.Enum(
-    ReviewStatus,
+    "REVIEWED",
+    "APPROVED",
+    "REJECTED",
     name="review_status_enum",
     schema="comments",
     native_enum=True,