v2.0.10 — snappier boot + non-blocking relay push on save

DB
- Six indices on the cards table (position+created_at, bucket_id,
  parent_id, updated_at, caldav_uid, relay_uid). The /api/cards
  ORDER BY position was a full-table scan + sort on every board
  reload; now it's an index walk.
- PRAGMA synchronous=NORMAL (safe under WAL) + temp_store=MEMORY.

Save path
- pushCardToRelayRead and deleteCardFromRelayRead now run AFTER the
  response is flushed via fastcgi_finish_request (falls back to
  ignore_user_abort + flush on non-FPM setups). The user's save no
  longer blocks on the relay round-trip.
- cURL timeouts dropped from 10s/30s to 5s/10s, plus a 2s
  connect-timeout. Worst-case on a dead relay goes from ~160s down
  to ~15s — and now that worst case is in the background anyway.

Client
- loadCards phase-2 batches bumped from 25 to 500 cards per fetch.
  For 300 cards that's 1 HTTP trip instead of 12 — spinner wall time
  drops from ~3s to ~0.25s.
- renderBoard() is now requestAnimationFrame-coalesced. The boot
  sequence calls renderBoard from cache paint, meta paint, body
  paint, and the cards.reloaded plugin hook; they used to each
  trigger an innerHTML swap + layout pass. Now they collapse into
  one actual render per frame. Callers that really need a sync
  render (rare) can use the new renderBoardSync().

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

public/index.php

@@ -312,13 +312,19 @@ if (str_starts_with($route, '/api/')) {
             'body'          => hyprcrdRelayEncrypt($body, $relayKey),
             'hero_filename' => $heroFilename,
         ]);
+        // Aggressive timeouts: read-later is opt-in + best-effort. If the
+        // relay is slow or unreachable we must NOT block the user's save —
+        // this function still runs inline from the PATCH handler (we'll
+        // also flush the response before invoking it), so the shorter
+        // timeout caps the worst-case backlog even if flushing fails.
         $ch = curl_init(rtrim($relayUrl, '/') . '/api/read');
         curl_setopt_array($ch, [
             CURLOPT_RETURNTRANSFER => true,
             CURLOPT_POST => true,
             CURLOPT_POSTFIELDS => $payload,
             CURLOPT_HTTPHEADER => ['Content-Type: application/json', 'X-Relay-User: ' . $relayUser, 'X-Relay-Key: ' . $relayKey],
-            CURLOPT_TIMEOUT => 10,
+            CURLOPT_CONNECTTIMEOUT => 2,
+            CURLOPT_TIMEOUT => 5,
         ]);
         hyprcrdApplySafeCurlOpts($ch);
         $resp = curl_exec($ch);
@@ -348,7 +354,8 @@ if (str_starts_with($route, '/api/')) {
                 CURLOPT_POST => true,
                 CURLOPT_POSTFIELDS => $attPayload,
                 CURLOPT_HTTPHEADER => ['Content-Type: application/json', 'X-Relay-User: ' . $relayUser, 'X-Relay-Key: ' . $relayKey],
-                CURLOPT_TIMEOUT => 30,
+                CURLOPT_CONNECTTIMEOUT => 2,
+                CURLOPT_TIMEOUT => 10,
             ]);
             hyprcrdApplySafeCurlOpts($ach);
             curl_exec($ach);
@@ -367,7 +374,8 @@ if (str_starts_with($route, '/api/')) {
             CURLOPT_RETURNTRANSFER => true,
             CURLOPT_CUSTOMREQUEST => 'DELETE',
             CURLOPT_HTTPHEADER => ['X-Relay-User: ' . $relayUser, 'X-Relay-Key: ' . $relayKey],
-            CURLOPT_TIMEOUT => 10,
+            CURLOPT_CONNECTTIMEOUT => 2,
+            CURLOPT_TIMEOUT => 5,
         ]);
         hyprcrdApplySafeCurlOpts($ch);
         curl_exec($ch);
@@ -397,13 +405,21 @@ if (str_starts_with($route, '/api/')) {
             'read_push' => $readPush,
         ]);
         $saved = $db->query('SELECT c.*, b.name as bucket_name FROM cards c LEFT JOIN buckets b ON c.bucket_id = b.id WHERE c.id = ' . $db->lastInsertId())->fetch();
-        if ($readPush && $saved) {
-            pushCardToRelayRead($saved, $db);
-            // relay_uid may have been generated inside the push helper;
-            // re-read so the client sees it on the response.
-            $saved = $db->query('SELECT c.*, b.name as bucket_name FROM cards c LEFT JOIN buckets b ON c.bucket_id = b.id WHERE c.id = ' . (int)$saved['id'])->fetch();
+        // When the card opts into read-later, generate the relay_uid up
+        // front so the response the client receives already carries it.
+        // Actually pushing to the relay happens AFTER the response is
+        // flushed — the relay hop is best-effort and shouldn't stretch
+        // the user-facing save latency.
+        if ($readPush && $saved && empty($saved['relay_uid'])) {
+            $uid = bin2hex(random_bytes(16));
+            $db->prepare('UPDATE cards SET relay_uid = ? WHERE id = ?')->execute([$uid, $saved['id']]);
+            $saved['relay_uid'] = $uid;
         }
         echo json_encode($saved);
+        if ($readPush && $saved) {
+            hyprcrdFinishRequest();
+            pushCardToRelayRead($saved, $db);
+        }
         exit;
     }
 
@@ -436,11 +452,15 @@ if (str_starts_with($route, '/api/')) {
         if ($cardRow && !empty($cardRow['caldav_uid'])) {
             $db->prepare('INSERT OR REPLACE INTO caldav_tombstones (caldav_uid, card_id) VALUES (?, ?)')->execute([$cardRow['caldav_uid'], $m[1]]);
         }
-        if ($cardRow && (int)($cardRow['read_push'] ?? 0) === 1 && !empty($cardRow['relay_uid'])) {
-            deleteCardFromRelayRead((string)$cardRow['relay_uid'], $db);
-        }
+        $wipeFromRelay = ($cardRow && (int)($cardRow['read_push'] ?? 0) === 1 && !empty($cardRow['relay_uid']))
+            ? (string)$cardRow['relay_uid'] : null;
         $db->prepare('DELETE FROM cards WHERE id = :id')->execute(['id' => $m[1]]);
-        echo json_encode(['ok' => true]); exit;
+        echo json_encode(['ok' => true]);
+        if ($wipeFromRelay) {
+            hyprcrdFinishRequest();
+            deleteCardFromRelayRead($wipeFromRelay, $db);
+        }
+        exit;
     }
 
     if (preg_match('#^/api/cards/(\d+)/history$#', $route, $m) && $method === 'GET') {
@@ -491,21 +511,34 @@ if (str_starts_with($route, '/api/')) {
         if ($fields) { $fields[] = 'updated_at = datetime("now")'; $db->prepare('UPDATE cards SET ' . implode(', ', $fields) . ' WHERE id = :id')->execute($params); }
         $card = $db->prepare('SELECT c.*, b.name as bucket_name FROM cards c LEFT JOIN buckets b ON c.bucket_id = b.id WHERE c.id = :id');
         $card->execute(['id' => $m[1]]); $savedCard = $card->fetch();
-        // Relay sync:
-        //  - if card currently wants to be in the read list, push (idempotent
-        //    upsert keeps the remote copy in sync on every edit).
-        //  - if the user just toggled it off, clean up remotely.
+        // Decide the relay-sync action BEFORE echoing the response, then
+        // flush + run the actual cURL hop afterwards. The user doesn't
+        // wait for the relay round-trip; a dead/slow relay no longer
+        // stretches the card save into "eine Ewigkeit".
+        $pushAction = null;    // 'push' | 'delete' | null
         if ($savedCard) {
             $nowRead = (int)($savedCard['read_push'] ?? 0);
             if ($nowRead === 1) {
-                pushCardToRelayRead($savedCard, $db);
-                // Re-read to surface any newly-generated relay_uid on the wire.
-                $card->execute(['id' => $m[1]]); $savedCard = $card->fetch();
+                // Mint relay_uid up front so the response carries it.
+                if (empty($savedCard['relay_uid'])) {
+                    $uid = bin2hex(random_bytes(16));
+                    $db->prepare('UPDATE cards SET relay_uid = ? WHERE id = ?')->execute([$uid, $savedCard['id']]);
+                    $savedCard['relay_uid'] = $uid;
+                }
+                $pushAction = 'push';
             } elseif ($prevRead === 1 && $prevRelayUid) {
-                deleteCardFromRelayRead($prevRelayUid, $db);
+                $pushAction = 'delete';
             }
         }
-        echo json_encode($savedCard); exit;
+        echo json_encode($savedCard);
+        if ($pushAction === 'push') {
+            hyprcrdFinishRequest();
+            pushCardToRelayRead($savedCard, $db);
+        } elseif ($pushAction === 'delete') {
+            hyprcrdFinishRequest();
+            deleteCardFromRelayRead((string)$prevRelayUid, $db);
+        }
+        exit;
     }
 
     // Plugins

public/js/app.js

@@ -108,11 +108,14 @@ async function loadCards() {
     updateSortUI();
     renderBoard();
 
-    // Phase 2: Load full cards in batches → replace spinners with content
-    const batchSize = 25;
-    for (let i = 0; i < meta.length; i += batchSize) {
-        const batch = meta.slice(i, i + batchSize);
-        const ids = batch.map(c => c.id).join(',');
+    // Phase 2: Load full card bodies. One fetch up to the ID cap — with
+    // the /api/cards(?ids=) endpoint now indexed on cards.position +
+    // created_at a single big batch is faster than many small ones, and
+    // shorter perceived spinner time matters more than memory. Fall back
+    // to smaller batches only if the URL would blow past ~2000 chars.
+    const IDS_MAX_PER_FETCH = 500;
+    for (let i = 0; i < meta.length; i += IDS_MAX_PER_FETCH) {
+        const ids = meta.slice(i, i + IDS_MAX_PER_FETCH).map(c => c.id).join(',');
         const full = await api('api/cards?ids=' + ids);
         if (!full) continue;
         for (const card of full) {

public/js/modules/board.js

@@ -493,8 +493,30 @@ export function renderCardHtml(c, inGroup = false, recent = []) {
 }
 
 // ── Render ──
+//
+// Public renderBoard() is coalesced via requestAnimationFrame: multiple
+// callers in the same tick (cache paint → meta paint → body paint →
+// plugin-hook re-render → ...) collapse into a single actual render on
+// the next frame. Dropped the "three innerHTML swaps per reload" cost
+// that showed up as the "Gekringel" during boot. Callers that need the
+// DOM in a specific state before doing something else can call
+// renderBoardSync() explicitly — but in practice every existing caller
+// just wants the board to reflect the latest state.
 
+let rafScheduled = 0;
 export function renderBoard() {
+    if (rafScheduled) return;
+    rafScheduled = requestAnimationFrame(() => {
+        rafScheduled = 0;
+        renderBoardSync();
+    });
+}
+export function renderBoardSync() {
+    if (rafScheduled) { cancelAnimationFrame(rafScheduled); rafScheduled = 0; }
+    renderBoardImpl();
+}
+
+function renderBoardImpl() {
     // Diff state.cards against the last seen ids so we can flag arrivals
     // as "unseen". The very first renderBoard runs with state.cards = []
     // (initial empty state, before the API has returned), so we wait