feat: route-centric rules, approve popup, emoji picker, 5-column sync table

- Schema: SyncRouteRuleMap junction table, ruleIntent on TenantRule,
  ForwardFormat/Frequency/ApprovalMode columns on SyncRoute, INTEREST
  match type
- Worker: remove global AUTO_APPROVE forwarding; per-route rule evaluation
  in ingest processor — POSITIVE rules auto-forward that route, NEGATIVE
  rules block it, fallback to approvalMode
- API: PATCH /routes/:id, rule assign/unassign endpoints, approve now
  accepts targetGroupIds, new GET /messages/:id/routes for popup data
- Web: 5-column route table with settings + rules dialogs, ForwardTarget
  popup with rule-based pre-selection, ruleIntent toggle + emoji dropdown
  (👍/👎 only) + INTEREST type in rules manager

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/web/app/api/routes/[id]/rules/route.ts

@@ -0,0 +1,15 @@
+import { apiFetch, jsonResponse } from '../../../../_lib/api';
+
+export const dynamic = 'force-dynamic';
+
+export async function GET(
+  _req: Request,
+  { params }: { params: Promise<{ id: string }> },
+): Promise<Response> {
+  const { id } = await params;
+  const res = await apiFetch(`/routes/${id}/rules`);
+  const text = await res.text();
+  let payload: unknown = text;
+  try { payload = JSON.parse(text); } catch { /* keep as text */ }
+  return jsonResponse(payload, res.status);
+}