add chat pin and delete actions

src/App.svelte

@@ -19,6 +19,7 @@
   let activityEvents: Array<{ event_id: string; event_type: string; occurred_at: string }> = [];
   let chatMessages: Array<{ event_id: string; message_id: string; user_id: string; user_name: string; text: string; fragments: Array<{ type: string; text: string; emote_id?: string }>; sent_at: string; reply_parent_message_id?: string }> = [];
   let chatReplyParent: { message_id: string; user_name: string } | undefined;
+  let pinnedMessageIds: string[] = [];
   let notifications: Array<{ id: string; severity: string; title: string; message: string; seen_at: string | null; created_at: string }> = [];
   let showNotifications = false;
   let showStreamEditor = false;
@@ -150,6 +151,7 @@
     diagnostics = undefined;
     chatMessages = [];
     chatReplyParent = undefined;
+    pinnedMessageIds = [];
   }
 
   function connectRealtime() {
@@ -350,6 +352,17 @@
     showModeration = true;
   }
 
+  function togglePinnedMessage(messageId: string) {
+    pinnedMessageIds = pinnedMessageIds.includes(messageId) ? pinnedMessageIds.filter((id) => id !== messageId) : [messageId, ...pinnedMessageIds];
+  }
+
+  function deleteChatMessage(message: { message_id: string; user_id: string }) {
+    moderationAction = 'delete_message';
+    moderationUserId = message.user_id;
+    moderationMessageId = message.message_id;
+    showModeration = true;
+  }
+
   async function applyModeration() {
     moderationBusy = true;
     moderationError = '';
@@ -497,7 +510,7 @@
       <div class="dashboard-grid">
         <section class="panel preview-panel"><div class="panel-header"><span>STREAM PREVIEW</span><span class="panel-menu">⋮</span></div>{#if playerSrc}<iframe class="twitch-player" title={`Twitch player for ${streamerName}`} src={playerSrc} allowfullscreen></iframe>{:else}<div class="preview-stage"><div class="offline-mark">STREAM OFFLINE</div><div class="offline-subtitle">CONNECT TWITCH TO BEGIN</div></div>{/if}<div class="panel-footer"><span class="micro">VIDEO PLAYER</span><span class="badge">{playerSrc ? streamerName : 'OFFLINE'}</span></div></section>
         <section class="panel activity-panel"><div class="panel-header"><span>ACTIVITY FEED</span><span class="panel-menu">⋮</span></div><div class="panel-tabs"><button class="tab active">ALL ACTIVITY</button><button class="tab">MODERATION</button></div>{#if activityEvents.length}<div class="activity-list">{#each activityEvents as event}<div class="activity-row"><span class="activity-type">{event.event_type}</span><span class="activity-time">{new Date(event.occurred_at).toLocaleTimeString()}</span></div>{/each}</div>{:else}<div class="empty-state"><div class="empty-glyph">◌</div><strong>Nothing here yet</strong><span>Follows, subscriptions, raids, and server events will appear here.</span></div>{/if}</section>
-        <section class="panel chat-panel"><div class="panel-header"><span>MY CHAT</span><span class="panel-menu">⋮</span></div>{#if chatMessages.length}<div class="chat-message-list">{#each chatMessages as message}<div class="chat-message"><button class="chat-user" onclick={() => moderateChatUser(message.user_id)}>{message.user_name}</button><span class="chat-text">{#if message.fragments.length}{#each message.fragments as fragment}{#if fragment.type === 'emote' && fragment.emote_id}<img class="chat-emote" src={`https://static-cdn.jtvnw.net/emoticons/v2/${encodeURIComponent(fragment.emote_id)}/static/dark/2.0`} alt={fragment.text} />{:else}{fragment.text}{/if}{/each}{:else}{message.text}{/if}</span><button class="chat-reply" onclick={() => replyToChatMessage(message)}>REPLY</button></div>{/each}</div>{:else}<div class="chat-empty"><div class="empty-glyph">⌁</div><strong>Chat is waiting</strong><span>Connect a streamer or bot account to begin.</span></div>{/if}<div class="chat-composer">{#if chatReplyParent}<div class="chat-reply-context">REPLYING TO @{chatReplyParent.user_name}<button class="secondary" onclick={() => (chatReplyParent = undefined)}>×</button></div>{/if}<div class="chat-identity-toggle"><button class:active={chatIdentity === 'streamer'} class="chat-identity" onclick={() => (chatIdentity = 'streamer')}>STREAMER</button><button class:active={chatIdentity === 'bot'} class="chat-identity" onclick={() => (chatIdentity = 'bot')}>BOT</button></div>{#if chatEmoteOptions.length}<div class="chat-emote-picker">{#each chatEmoteOptions as emote}<button class="chat-emote-option" onclick={() => selectChatEmote(emote.name)}><img src={emote.url} alt={emote.name} /><span>{emote.name}</span><span class="micro">{emote.provider}</span></button>{/each}</div>{/if}<div class="chat-send-row"><input class="control" bind:value={chatMessage} maxlength="500" placeholder={`Send as ${chatIdentity}`} oninput={() => searchChatEmotes(chatMessage)} onkeydown={(event) => event.key === 'Enter' && sendChatMessage()} /><button class="primary" onclick={sendChatMessage} disabled={chatBusy || !chatMessage.trim()}>SEND</button></div>{#if chatError}<div class="auth-error">{chatError}</div>{/if}</div></section>
+        <section class="panel chat-panel"><div class="panel-header"><span>MY CHAT</span><span class="panel-menu">⋮</span></div>{#if pinnedMessageIds.length}<div class="pinned-messages"><span class="micro">PINNED</span>{#each chatMessages.filter((message) => pinnedMessageIds.includes(message.message_id)) as message}<div class="pinned-message"><span class="chat-user">{message.user_name}</span><span>{message.text}</span></div>{/each}</div>{/if}{#if chatMessages.length}<div class="chat-message-list">{#each chatMessages as message}<div class:message-pinned={pinnedMessageIds.includes(message.message_id)} class="chat-message"><button class="chat-user" onclick={() => moderateChatUser(message.user_id)}>{message.user_name}</button><span class="chat-text">{#if message.fragments.length}{#each message.fragments as fragment}{#if fragment.type === 'emote' && fragment.emote_id}<img class="chat-emote" src={`https://static-cdn.jtvnw.net/emoticons/v2/${encodeURIComponent(fragment.emote_id)}/static/dark/2.0`} alt={fragment.text} />{:else}{fragment.text}{/if}{/each}{:else}{message.text}{/if}</span><span class="chat-actions"><button class="chat-reply" onclick={() => togglePinnedMessage(message.message_id)}>{pinnedMessageIds.includes(message.message_id) ? 'UNPIN' : 'PIN'}</button><button class="chat-reply" onclick={() => replyToChatMessage(message)}>REPLY</button><button class="chat-reply danger" onclick={() => deleteChatMessage(message)}>DELETE</button></span></div>{/each}</div>{:else}<div class="chat-empty"><div class="empty-glyph">⌁</div><strong>Chat is waiting</strong><span>Connect a streamer or bot account to begin.</span></div>{/if}<div class="chat-composer">{#if chatReplyParent}<div class="chat-reply-context">REPLYING TO @{chatReplyParent.user_name}<button class="secondary" onclick={() => (chatReplyParent = undefined)}>×</button></div>{/if}<div class="chat-identity-toggle"><button class:active={chatIdentity === 'streamer'} class="chat-identity" onclick={() => (chatIdentity = 'streamer')}>STREAMER</button><button class:active={chatIdentity === 'bot'} class="chat-identity" onclick={() => (chatIdentity = 'bot')}>BOT</button></div>{#if chatEmoteOptions.length}<div class="chat-emote-picker">{#each chatEmoteOptions as emote}<button class="chat-emote-option" onclick={() => selectChatEmote(emote.name)}><img src={emote.url} alt={emote.name} /><span>{emote.name}</span><span class="micro">{emote.provider}</span></button>{/each}</div>{/if}<div class="chat-send-row"><input class="control" bind:value={chatMessage} maxlength="500" placeholder={`Send as ${chatIdentity}`} oninput={() => searchChatEmotes(chatMessage)} onkeydown={(event) => event.key === 'Enter' && sendChatMessage()} /><button class="primary" onclick={sendChatMessage} disabled={chatBusy || !chatMessage.trim()}>SEND</button></div>{#if chatError}<div class="auth-error">{chatError}</div>{/if}</div></section>
         <section class="panel quick-panel"><div class="panel-header"><span>QUICK ACTIONS</span><span class="panel-menu">⋮</span></div><div class="quick-grid"><button class="quick-action accent" onclick={() => (showStreamEditor = !showStreamEditor)}>EDIT STREAM INFO</button><button class="quick-action" onclick={() => (showModeration = !showModeration)}>MODERATION</button><button class="quick-action">BOT COMMANDS</button><button class="quick-action">OVERLAYS</button></div>{#if showStreamEditor}<div class="stream-editor"><label class="micro" for="stream-title">TITLE</label><input id="stream-title" class="control" bind:value={streamTitle} maxlength="140" /><label class="micro" for="stream-category">CATEGORY</label><input id="stream-category" class="control" value={categorySearch} oninput={(event) => searchCategories(event.currentTarget.value)} autocomplete="off" placeholder="Search Twitch categories" />{#if categoryOptions.length}<div class="category-options">{#each categoryOptions as category}<button class="category-option" onclick={() => { streamGameId = category.id; categorySearch = category.name; categoryOptions = []; }}><span>{category.name}</span><span class="mono">{category.id}</span></button>{/each}</div>{/if}<label class="micro" for="stream-language">LANGUAGE</label><input id="stream-language" class="control" bind:value={streamLanguage} maxlength="10" /><label class="micro" for="stream-tags">TAGS</label><input id="stream-tags" class="control" bind:value={streamTags} placeholder="comma, separated" /><label class="micro" for="stream-labels">CLASSIFICATION LABELS</label><input id="stream-labels" class="control" bind:value={streamClassificationLabels} placeholder="comma, separated" /><button class="primary control-button" onclick={saveStreamInfo} disabled={streamBusy}>SAVE STREAM INFO</button>{#if streamError}<div class="auth-error">{streamError}</div>{/if}</div>{/if}{#if showModeration}<div class="stream-editor"><label class="micro" for="moderation-action">ACTION</label><select id="moderation-action" class="control" bind:value={moderationAction}><option value="timeout">TIMEOUT</option><option value="ban">BAN</option><option value="unban">UNBAN</option><option value="delete_message">DELETE MESSAGE</option></select><label class="micro" for="moderation-user">USER ID</label><input id="moderation-user" class="control" bind:value={moderationUserId} maxlength="64" /><label class="micro" for="moderation-message">MESSAGE ID (DELETE)</label><input id="moderation-message" class="control" bind:value={moderationMessageId} maxlength="128" /><label class="micro" for="moderation-duration">TIMEOUT SECONDS</label><input id="moderation-duration" class="control" type="number" min="1" max="1209600" bind:value={moderationDuration} /><label class="micro" for="moderation-reason">REASON</label><input id="moderation-reason" class="control" maxlength="500" bind:value={moderationReason} /><button class="primary control-button" onclick={applyModeration} disabled={moderationBusy || !moderationUserId}>APPLY MODERATION</button>{#if moderationError}<div class="auth-error">{moderationError}</div>{/if}</div>{/if}</section>
       </div>
       {/if}

src/styles.css

@@ -278,6 +278,37 @@ button:hover:not(:disabled) {
   color: var(--ed-dim);
   font: 9px var(--font-data);
 }
+.chat-actions {
+  display: flex;
+  margin-left: auto;
+  gap: 3px;
+  opacity: 0;
+}
+.chat-message:hover .chat-actions,
+.chat-message:focus-within .chat-actions {
+  opacity: 1;
+}
+.chat-reply.danger {
+  color: var(--ed-danger);
+}
+.message-pinned {
+  background: var(--ui-surface);
+}
+.pinned-messages {
+  padding: 7px 10px;
+  border-bottom: 1px solid var(--ui-divider);
+  background: var(--ui-surface);
+}
+.pinned-message {
+  display: flex;
+  gap: 7px;
+  margin-top: 5px;
+  overflow: hidden;
+  color: var(--ed-fg);
+  font-size: 11px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
 .chat-reply-context {
   display: flex;
   align-items: center;