Fix case repo sync + auto-create Gitea repos + add sync indicator

- auto-sync-cases.sh: fix broken directory scan (was looking for
  status subdirs that don't exist), fix env var word-splitting bug,
  add safe.directory handling and error logging
- cases.py: auto-create Gitea repo on case_create, fix
  documents/original → documents/originals naming mismatch
- app.py: add GET /api/cases/{case_number}/git-status endpoint
- web-ui: add SyncIndicator component in case header showing
  sync status (synced/pending/no remote) with last commit time
- pyproject.toml: add httpx dependency
- CLAUDE.md: update Paperclip wakeup API docs
- settings page: switch tag input from Select to free-text with datalist

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

web-ui/src/components/cases/case-header.tsx

@@ -2,6 +2,7 @@ import Link from "next/link";
 import { Card, CardContent } from "@/components/ui/card";
 import { Badge } from "@/components/ui/badge";
 import { StatusBadge } from "@/components/cases/status-badge";
+import { SyncIndicator } from "@/components/cases/sync-indicator";
 import {
   PRACTICE_AREA_LABELS,
   APPEAL_SUBTYPE_LABELS,
@@ -71,6 +72,10 @@ export function CaseHeader({ data }: { data?: CaseDetail }) {
               עודכן
             </dt>
             <dd className="text-ink-soft tabular-nums">{formatDate(data?.updated_at)}</dd>
+            <dt className="text-ink-muted text-[0.72rem] uppercase tracking-wider">
+              סנכרון
+            </dt>
+            <dd><SyncIndicator caseNumber={data?.case_number} /></dd>
           </dl>
         </div>
       </CardContent>