feat(platform): Phase 482 message span metadata (v0.8.445)

Add hasAttachment/hasSticker, contentChanged, and wasOwn to message spans.

Co-authored-by: Cursor <[email protected]>

README.md

@@ -39,6 +39,8 @@ Expose a single `EventEmitter` API the UI drives over IPC (`apps/pearcord/index.
 
 **v0.8.430 (Phase 467):** `voice.leave` span `end` includes `leavingIsStage`; `screen.start` span `end` includes `label`. Bundle: `npm run test:phase467-voice-stage`. See [VOICE.md](../../docs/VOICE.md), [STAGE_CHANNELS.md](../../docs/STAGE_CHANNELS.md).
 
+**v0.8.445 (Phase 482):** `message.send` `hasAttachment`/`hasSticker`; `message.edit` `contentChanged`; `message.delete` `wasOwn`. UI messaging compositor + hints. Bundle: `npm run test:phase482-messaging`. See [MESSAGING.md](../../docs/MESSAGING.md).
+
 **v0.8.444 (Phase 481):** `attachment.stage` `byteLength`/`isImage`; `attachment.read` `fromLocal`; `embed.resolve` `urlLen`. UI attachment compositor + clipboard staging meta. Bundle: `npm run test:phase481-attachments`. See [ATTACHMENTS.md](../../docs/ATTACHMENTS.md), [EMBEDS.md](../../docs/EMBEDS.md).
 
 **v0.8.443 (Phase 480):** `voice.join` `wasInVoice`/`switchedChannel`; `voice.leave` `hadMedia`; `screen.start` `hasLabel`; `screen.stop` `stopped`. UI voice compositor. Bundle: `npm run test:phase480-voice`. See [VOICE.md](../../docs/VOICE.md).

index.js

@@ -10767,7 +10767,9 @@ class PearcordPlatform extends EventEmitter {
         hasMention: /(?:<@[^>]+>|@\w)/.test(body),
         isSlash: body.trimStart().startsWith('/'),
         attachmentCount: (opts.attachmentIds || []).length,
-        stickerCount: (opts.stickerNames || []).length
+        hasAttachment: (opts.attachmentIds || []).length > 0,
+        stickerCount: (opts.stickerNames || []).length,
+        hasSticker: (opts.stickerNames || []).length > 0
       })
       return msg
     } catch (err) {
@@ -10914,13 +10916,15 @@ class PearcordPlatform extends EventEmitter {
       if (this.mode === 'dm' && this.dm) this.dm.gossipMessageUpdate(msg)
       else if (this.guild) this.guild.gossipMessageUpdate(msg)
       this.emit('message', msg)
+      const nextLength = String(content || '').length
       span.end({
         messageId: msg?.id,
         guildId,
         channelId,
-        contentLength: String(content || '').length,
+        contentLength: nextLength,
         priorLength,
-        edited: true
+        edited: true,
+        contentChanged: priorLength !== nextLength
       })
       return msg
     } catch (err) {
@@ -11620,7 +11624,14 @@ class PearcordPlatform extends EventEmitter {
       if (this.mode === 'dm' && this.dm) this.dm.gossipMessageDelete(payload)
       else if (this.guild) this.guild.gossipMessageDelete(payload)
       this.emit('message-delete', payload)
-      span.end({ messageId, guildId, channelId, contentLength, hadAttachments })
+      span.end({
+        messageId,
+        guildId,
+        channelId,
+        contentLength,
+        hadAttachments,
+        wasOwn: existing?.authorId === this.identity?.user?.id
+      })
     } catch (err) {
       this.log.error('message.delete error', {
         messageId,