Fixes batch 2: player quests, AI parse, advisor, iPad share

- Player view: a Quest log now syncs to players (snapshot += quests; broadcaster
  passes campaign quests; PlayerBoards renders titles + objective checkboxes).
- AI (DeepSeek etc.): robust JSON extraction — strip code fences anywhere + a
  brace-balanced scanner that ignores prose/braces in strings. Fixes "AI unavailable
  (parse)" with OpenAI-compatible providers. +4 tests.
- Encounter advisor: now bidirectional — for an over-tuned (too-hard) fight it
  suggests REMOVING/swapping monsters instead of only ever adding. +3 tests.
- Character share: works on iPad — native share sheet → clipboard → a copyable
  link modal fallback (was a silently-failing clipboard write).

230 unit + 34 e2e + 2 realtime green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/features/characters/CharacterSheet.tsx

@@ -13,6 +13,7 @@ import { rollCheck } from '@/lib/useRoll';
 import { cn } from '@/lib/cn';
 import { Page } from '@/components/ui/Page';
 import { Button } from '@/components/ui/Button';
+import { Modal } from '@/components/ui/Modal';
 import { Badge, Meter } from '@/components/ui/Codex';
 import { Input, Select } from '@/components/ui/Input';
 import { NumberField } from '@/components/ui/NumberField';
@@ -43,6 +44,9 @@ export function CharacterSheet({ character }: { character: Character }) {
   const [levelUp, setLevelUp] = useState(false);
   const [genScores, setGenScores] = useState(false);
   const [shared, setShared] = useState(false);
+  // Manual fallback: holds the link to show in a selectable dialog when neither
+  // Web Share nor Clipboard is available (e.g. iPad without a secure context).
+  const [shareLink, setShareLink] = useState<string | null>(null);
 
   const onPortrait = async (file: File) => {
     const thumb = await squareThumbnail(await fileToDataUrl(file), 256);
@@ -52,9 +56,27 @@ export function CharacterSheet({ character }: { character: Character }) {
   const shareWithPlayer = async () => {
     const campaign = await campaignsRepo.get(c.campaignId);
     const link = `${location.origin}/player?c=${encodeClaim({ character: c, campaignName: campaign?.name ?? 'Campaign', campaignSystem: c.system })}`;
-    try { await navigator.clipboard?.writeText(link); } catch { /* clipboard blocked */ }
-    setShared(true);
-    setTimeout(() => setShared(false), 1500);
+    // Prefer the native share sheet (best on iOS/iPadOS), then the clipboard,
+    // then a selectable dialog so the link is always recoverable.
+    if (typeof navigator.share === 'function') {
+      try {
+        await navigator.share({ title: `${c.name} — character link`, url: link });
+        return;
+      } catch (err) {
+        // User dismissed the share sheet: respect that and do nothing further.
+        if (err instanceof DOMException && err.name === 'AbortError') return;
+        // Otherwise fall through to clipboard / manual fallback.
+      }
+    }
+    try {
+      if (navigator.clipboard?.writeText) {
+        await navigator.clipboard.writeText(link);
+        setShared(true);
+        setTimeout(() => setShared(false), 1500);
+        return;
+      }
+    } catch { /* clipboard blocked (e.g. insecure context on iPad) */ }
+    setShareLink(link);
   };
   const save = useDebouncedCallback((next: Character) => {
     // Persist everything except identity/timestamps (update() stamps updatedAt).
@@ -281,6 +303,24 @@ export function CharacterSheet({ character }: { character: Character }) {
       {levelUp && (
         <LevelUpModal character={c} onClose={() => setLevelUp(false)} onApply={(patch) => update(patch)} />
       )}
+      {shareLink !== null && (
+        <Modal
+          open
+          onClose={() => setShareLink(null)}
+          title="Share with player"
+          footer={<Button size="sm" variant="ghost" onClick={() => setShareLink(null)}>Done</Button>}
+        >
+          <p className="mb-2 text-sm text-muted">Copy this link and send it to the player:</p>
+          <Input
+            data-autofocus
+            readOnly
+            value={shareLink}
+            aria-label="Player link"
+            className="font-mono text-xs"
+            onFocus={(e) => e.currentTarget.select()}
+          />
+        </Modal>
+      )}
     </Page>
   );
 }