feat: stream list view and tasks (#279)

* first attempt at stream sidebar, tasks, and events

* fix folder from root

* cleanup folders and events, and condense changes

* cleanup and add toggle for sidebar

* cleanup

* fix nits

js/desktop/src/features/particles/text-particle-view.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useRef, useState } from 'react';
+import { useState } from 'react';
 import { Pencil } from 'lucide-react';
 import type { Particle } from '@/api/types';
 import type { ParticlePath } from '@/lib/particle-path';
@@ -20,6 +20,7 @@ import { ParticleAttachments } from '@/features/particles/particle-attachments';
 import { TextEditOverlay } from '@/features/particles/text-edit-overlay';
 import { RelativeTimestamp } from '@/components/relative-timestamp';
 import { useAuthStore } from '@/stores/auth-store';
+import { useFixedDwell } from '@/hooks/use-fixed-dwell';
 import { MarkdownEditor } from '@/features/compose/markdown-editor';
 
 type TextParticle = Extract<Particle, { type: 'text' }>;
@@ -36,7 +37,6 @@ interface TextParticleViewProps {
 const CHARS_PER_MINUTE = 1000;
 const MIN_DURATION_S = 3;
 const MAX_DURATION_S = 15;
-const TICK_MS = 100;
 const EXTRA_S_PER_LINK = 2;
 const EXTRA_S_PER_ATTACHMENT = 2;
 
@@ -97,29 +97,14 @@ export function TextParticleView({
     urls.length,
     attachments.length,
   );
-  const elapsedRef = useRef(0);
 
-  // Reset elapsed when particle changes
-  useEffect(() => {
-    elapsedRef.current = 0;
-  }, [particle.id]);
-
-  useEffect(() => {
-    if (paused) return;
-
-    const interval = setInterval(() => {
-      elapsedRef.current += TICK_MS / 1000;
-      const ratio = Math.min(elapsedRef.current / durationS, 1);
-      onProgress?.(ratio);
-
-      if (ratio >= 1) {
-        clearInterval(interval);
-        onEnded();
-      }
-    }, TICK_MS);
-
-    return () => clearInterval(interval);
-  }, [paused, durationS, onEnded, onProgress, particle.id]);
+  useFixedDwell({
+    id: particle.id,
+    durationS,
+    paused,
+    onEnded,
+    onProgress,
+  });
 
   // Content is just bare URLs with no surrounding text
   const contentTrimmed = content.trim();