Add database migration snapshots for comment_votes, comments, movies, and users tables

- Created 0009_snapshot.json with initial structure for comment_votes, comments, movies, and users tables.
- Created 0010_snapshot.json with updated structure for comments, including new fields: pinned and spoiler.
- Created 0011_snapshot.json with further updates to comments, adding anonymous field and refining existing structures.

app/composables/useCommentDraft.ts

@@ -0,0 +1,69 @@
+export type CommentDraft = {
+  slug: string
+  source: string
+  content: string
+  movieName?: string
+  savedAt: number
+}
+
+const draftKey = 'cinek-comment-drafts'
+
+function readDrafts(): CommentDraft[] {
+  if (!import.meta.client) return []
+  try {
+    const raw = window.localStorage.getItem(draftKey)
+    const drafts = raw ? JSON.parse(raw) : []
+    return Array.isArray(drafts) ? drafts : []
+  } catch {
+    return []
+  }
+}
+
+function writeDrafts(drafts: CommentDraft[]) {
+  if (!import.meta.client) return
+  window.localStorage.setItem(draftKey, JSON.stringify(drafts))
+}
+
+function findDraftKey(slug: string, source: string) {
+  return `${source}::${slug}`
+}
+
+export function useCommentDraft() {
+  function getDraft(slug: string, source: string): CommentDraft | null {
+    const drafts = readDrafts()
+    const key = findDraftKey(slug, source)
+    return drafts.find(d => findDraftKey(d.slug, d.source) === key) || null
+  }
+
+  function saveDraft(slug: string, source: string, content: string, movieName?: string) {
+    const drafts = readDrafts()
+    const key = findDraftKey(slug, source)
+    const filtered = drafts.filter(d => findDraftKey(d.slug, d.source) !== key)
+    filtered.unshift({ slug, source, content, movieName, savedAt: Date.now() })
+    writeDrafts(filtered.slice(0, 50))
+  }
+
+  function deleteDraft(slug: string, source: string) {
+    const drafts = readDrafts()
+    const key = findDraftKey(slug, source)
+    const filtered = drafts.filter(d => findDraftKey(d.slug, d.source) !== key)
+    writeDrafts(filtered)
+  }
+
+  function getAllDrafts(): CommentDraft[] {
+    return readDrafts()
+  }
+
+  function clearAllDrafts() {
+    if (import.meta.client) {
+      window.localStorage.removeItem(draftKey)
+    }
+  }
+
+  function clearExpiredDrafts(maxAgeMs = 7 * 24 * 60 * 60 * 1000) {
+    const drafts = readDrafts().filter(d => Date.now() - d.savedAt < maxAgeMs)
+    writeDrafts(drafts)
+  }
+
+  return { getDraft, saveDraft, deleteDraft, getAllDrafts, clearAllDrafts, clearExpiredDrafts }
+}