feat(kon): scaffold hybrid modular workspace

- Cargo workspace with 6 domain crates: core, audio, transcription, ai-formatting, storage, cloud-providers
- Minimal Tauri shell (lib.rs + main.rs) with plugin registration
- Svelte 5 frontend copied from Ramble v0.2
- All crates compile as empty stubs
- App identifier: uk.co.corbel.kon

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/lib/pages/TasksPage.svelte

@@ -0,0 +1,512 @@
+<script>
+  import { invoke } from "@tauri-apps/api/core";
+  import {
+    tasks, addTask, completeTask, uncompleteTask, deleteTask, updateTask,
+    taskLists, addTaskList, renameTaskList, deleteTaskList,
+  } from "$lib/stores/page.svelte.js";
+  import Card from "$lib/components/Card.svelte";
+  import { formatTimestamp } from "$lib/utils/time.js";
+  import { BUCKET_COLORS, EFFORT_LABELS, EFFORT_ORDER } from "$lib/utils/constants.js";
+
+  let activeBucket = $state("all");
+  let activeListId = $state("all");
+  let showCompleted = $state(false);
+  let quickInput = $state("");
+  let searchQuery = $state("");
+  let sidebarCollapsed = $state(false);
+  let showNewList = $state(false);
+  let newListName = $state("");
+  let sortMode = $state("date");
+  let showSortMenu = $state(false);
+  let contextMenuListId = $state(null);
+  let editingListId = $state(null);
+  let editingName = $state("");
+
+  const buckets = [
+    { id: "all", label: "All", icon: "M4 6h16M4 12h16M4 18h16" },
+    { id: "inbox", label: "Inbox", icon: "M20 12V6a2 2 0 0 0-2-2H6a2 2 0 0 0-2 2v6m16 0v6a2 2 0 0 0-2 2H6a2 2 0 0 0-2-2v-6m16 0H4" },
+    { id: "today", label: "Today", icon: "M12 2a10 10 0 1 0 0 20 10 10 0 0 0 0-20Zm0 18a8 8 0 1 1 0-16 8 8 0 0 1 0 16Zm-1-13v5l4.28 2.54.72-1.21-3.5-2.08V7h-1.5Z" },
+    { id: "soon", label: "Soon", icon: "M17 3H7a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h10a2 2 0 0 0 2-2V5a2 2 0 0 0-2-2ZM7 7h10M7 11h10M7 15h5" },
+    { id: "later", label: "Later", icon: "M5 3v18l7-3 7 3V3H5Z" },
+  ];
+
+
+  let filteredTasks = $derived.by(() => {
+    let list = tasks.filter((t) => !t.done);
+    // Bucket filter
+    if (activeBucket !== "all") {
+      list = list.filter((t) => t.bucket === activeBucket);
+    }
+    // List filter
+    if (activeListId !== "all") {
+      if (activeListId === "inbox") {
+        list = list.filter((t) => !t.listId);
+      } else {
+        list = list.filter((t) => t.listId === activeListId);
+      }
+    }
+    // Search
+    if (searchQuery.trim()) {
+      const q = searchQuery.toLowerCase();
+      list = list.filter((t) => t.text.toLowerCase().includes(q));
+    }
+    // Sort
+    if (sortMode === "quick-first") {
+      list.sort((a, b) => (EFFORT_ORDER[a.effort] || 4) - (EFFORT_ORDER[b.effort] || 4));
+    } else if (sortMode === "deep-first") {
+      list.sort((a, b) => (EFFORT_ORDER[b.effort] || 4) - (EFFORT_ORDER[a.effort] || 4));
+    }
+    return list;
+  });
+
+  let completedTasks = $derived.by(() => {
+    let list = tasks.filter((t) => t.done);
+    if (activeBucket !== "all") {
+      list = list.filter((t) => t.bucket === activeBucket);
+    }
+    if (activeListId !== "all") {
+      if (activeListId === "inbox") {
+        list = list.filter((t) => !t.listId);
+      } else {
+        list = list.filter((t) => t.listId === activeListId);
+      }
+    }
+    if (searchQuery.trim()) {
+      const q = searchQuery.toLowerCase();
+      list = list.filter((t) => t.text.toLowerCase().includes(q));
+    }
+    return list.slice(0, 20);
+  });
+
+  let bucketCounts = $derived.by(() => {
+    const counts = { all: 0, inbox: 0, today: 0, soon: 0, later: 0 };
+    for (const t of tasks) {
+      if (t.done) continue;
+      counts.all++;
+      if (counts[t.bucket] !== undefined) counts[t.bucket]++;
+    }
+    return counts;
+  });
+
+  function countForList(listId) {
+    if (listId === "all") return tasks.filter((t) => !t.done).length;
+    if (listId === "inbox") return tasks.filter((t) => !t.done && !t.listId).length;
+    return tasks.filter((t) => !t.done && t.listId === listId).length;
+  }
+
+  let activeListName = $derived(
+    activeListId === "all" ? "All Lists" : (taskLists.find((l) => l.id === activeListId)?.name || "Tasks")
+  );
+
+  function handleQuickAdd(e) {
+    if (e.key === "Enter" && quickInput.trim()) {
+      const listId = (activeListId === "all" || activeListId === "inbox") ? null : activeListId;
+      addTask({
+        text: quickInput.trim(),
+        bucket: activeBucket === "all" ? "inbox" : activeBucket,
+        listId,
+      });
+      quickInput = "";
+    }
+  }
+
+  function setBucket(taskId, bucket) {
+    updateTask(taskId, { bucket });
+  }
+
+  function setEffort(taskId, effort) {
+    updateTask(taskId, { effort: effort === tasks.find((t) => t.id === taskId)?.effort ? "" : effort });
+  }
+
+
+  function getListName(listId) {
+    if (!listId) return null;
+    return taskLists.find((l) => l.id === listId)?.name || null;
+  }
+
+  async function popOutTasks() {
+    try {
+      await invoke("open_task_window");
+    } catch {
+      window.open("/float", "_blank", "width=380,height=520");
+    }
+  }
+
+  // List management
+  function handleCreateList(e) {
+    if (e.key === "Enter" && newListName.trim()) {
+      addTaskList(newListName.trim());
+      newListName = "";
+      showNewList = false;
+    }
+    if (e.key === "Escape") { showNewList = false; newListName = ""; }
+  }
+
+  function startRenaming(list) {
+    editingListId = list.id;
+    editingName = list.name;
+    contextMenuListId = null;
+  }
+
+  function finishRenaming() {
+    if (editingListId && editingName.trim()) {
+      renameTaskList(editingListId, editingName.trim());
+    }
+    editingListId = null;
+    editingName = "";
+  }
+
+  function handleDeleteList(id) {
+    if (activeListId === id) activeListId = "all";
+    deleteTaskList(id);
+    contextMenuListId = null;
+  }
+
+  function toggleContextMenu(e, listId) {
+    e.preventDefault();
+    e.stopPropagation();
+    contextMenuListId = contextMenuListId === listId ? null : listId;
+  }
+</script>
+
+<div class="flex flex-col h-full animate-fade-in">
+  <!-- Header -->
+  <div class="flex items-center px-7 pt-6 pb-2">
+    <div>
+      <h2 class="text-xl font-display text-text italic">Tasks</h2>
+      <p class="text-[11px] text-text-tertiary mt-1">Extracted from transcripts or added manually</p>
+    </div>
+    <div class="flex-1"></div>
+    <button
+      class="flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-[12px] text-text-secondary hover:bg-hover hover:text-text"
+      onclick={popOutTasks}
+      aria-label="Pop out task window"
+    >
+      <svg class="w-3.5 h-3.5" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round">
+        <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6M15 3h6v6M10 14L21 3" />
+      </svg>
+      Pop out
+    </button>
+  </div>
+
+  <!-- Search -->
+  <div class="px-7 pb-2">
+    <div class="flex items-center gap-2 bg-bg-input border border-border rounded-lg px-3 py-1.5 focus-within:border-accent transition-colors">
+      <svg class="w-3.5 h-3.5 text-text-tertiary flex-shrink-0" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+        <circle cx="11" cy="11" r="8" />
+        <path d="M21 21l-4.35-4.35" stroke-linecap="round" />
+      </svg>
+      <input
+        type="text"
+        class="flex-1 bg-transparent text-[12px] text-text placeholder:text-text-tertiary focus:outline-none"
+        placeholder="Search tasks..."
+        bind:value={searchQuery}
+        data-no-transition
+      />
+      {#if searchQuery}
+        <button class="text-[10px] text-text-tertiary hover:text-text" onclick={() => searchQuery = ""}>Clear</button>
+      {/if}
+    </div>
+  </div>
+
+  <!-- Quick capture -->
+  <div class="px-7 pb-3">
+    <div class="flex items-center gap-2 bg-bg-input border border-border rounded-xl px-4 py-2.5 focus-within:border-accent transition-colors">
+      <svg class="w-4 h-4 text-text-tertiary flex-shrink-0" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+        <path d="M12 5v14M5 12h14" stroke-linecap="round" />
+      </svg>
+      <input
+        type="text"
+        class="flex-1 bg-transparent text-[13px] text-text placeholder:text-text-tertiary focus:outline-none"
+        placeholder="Add a task to {activeListName}{activeBucket !== 'all' ? ` (${activeBucket})` : ''}... (Enter to save)"
+        bind:value={quickInput}
+        onkeydown={handleQuickAdd}
+      />
+      {#if quickInput.trim()}
+        <span class="text-[10px] text-text-tertiary px-1.5 py-0.5 rounded bg-bg-elevated border border-border-subtle">
+          &rarr; {activeBucket === "all" ? "inbox" : activeBucket}
+        </span>
+      {/if}
+    </div>
+  </div>
+
+  <!-- Bucket tabs + sort -->
+  <div class="flex items-center gap-1 px-7 pb-3">
+    {#each buckets as bucket}
+      <button
+        class="flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-[12px] transition-colors
+          {activeBucket === bucket.id
+            ? 'bg-nav-active text-text font-medium'
+            : 'text-text-secondary hover:bg-hover hover:text-text'}"
+        onclick={() => activeBucket = bucket.id}
+      >
+        <svg class="w-3.5 h-3.5 {activeBucket === bucket.id ? 'text-accent' : 'text-text-tertiary'}" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+          <path d={bucket.icon} />
+        </svg>
+        {bucket.label}
+        {#if bucketCounts[bucket.id] > 0}
+          <span class="text-[10px] px-1.5 py-0.5 rounded-full bg-bg-elevated text-text-tertiary">
+            {bucketCounts[bucket.id]}
+          </span>
+        {/if}
+      </button>
+    {/each}
+
+    <div class="flex-1"></div>
+
+    <!-- Sort dropdown -->
+    <div class="relative">
+      <button
+        class="flex items-center gap-1 px-2 py-1.5 rounded-lg text-[11px] text-text-tertiary hover:text-text-secondary hover:bg-hover"
+        onclick={() => showSortMenu = !showSortMenu}
+      >
+        <svg class="w-3.5 h-3.5" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+          <path d="M3 6h18M3 12h12M3 18h6" stroke-linecap="round" />
+        </svg>
+        {sortMode === "date" ? "" : sortMode === "quick-first" ? "Quick first" : "Deep first"}
+      </button>
+      {#if showSortMenu}
+        <div class="absolute right-0 top-full mt-1 bg-bg-card border border-border rounded-lg shadow-lg py-1 z-20 animate-fade-in min-w-[120px]">
+          {#each [["date", "By date"], ["quick-first", "Quick first"], ["deep-first", "Deep first"]] as [mode, label]}
+            <button
+              class="w-full text-left px-3 py-1 text-[11px] hover:bg-hover
+                {sortMode === mode ? 'text-accent font-medium' : 'text-text-secondary hover:text-text'}"
+              onclick={() => { sortMode = mode; showSortMenu = false; }}
+            >{label}</button>
+          {/each}
+        </div>
+      {/if}
+    </div>
+  </div>
+
+  <!-- Main content: sidebar + tasks -->
+  <div class="flex flex-1 min-h-0 px-7 pb-4 gap-3">
+    <!-- List sidebar -->
+    <div
+      class="flex flex-col bg-bg-elevated rounded-2xl border border-border-subtle overflow-hidden transition-[width] duration-150
+        {sidebarCollapsed ? 'w-[40px] min-w-[40px]' : 'w-[160px] min-w-[160px]'}"
+    >
+      <!-- Collapse toggle -->
+      <button
+        class="flex items-center justify-center h-[32px] text-text-tertiary hover:text-text-secondary border-b border-border-subtle"
+        onclick={() => sidebarCollapsed = !sidebarCollapsed}
+      >
+        <svg class="w-3 h-3 transition-transform {sidebarCollapsed ? 'rotate-180' : ''}" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+          <path d="M15 18l-6-6 6-6" stroke-linecap="round" stroke-linejoin="round" />
+        </svg>
+      </button>
+
+      <!-- List items -->
+      <div class="flex-1 overflow-y-auto py-1">
+        {#each taskLists as list (list.id)}
+          {#if editingListId === list.id && !sidebarCollapsed}
+            <div class="px-1.5 py-0.5">
+              <input
+                type="text"
+                class="w-full bg-bg-input border border-accent rounded px-2 py-1 text-[10px] text-text focus:outline-none"
+                bind:value={editingName}
+                onkeydown={(e) => { if (e.key === "Enter") finishRenaming(); if (e.key === "Escape") { editingListId = null; } }}
+                onblur={finishRenaming}
+                data-no-transition
+                autofocus
+              />
+            </div>
+          {:else}
+            <div class="relative">
+              <button
+                class="w-full flex items-center gap-1.5 px-2 py-1.5 text-left text-[11px]
+                  {activeListId === list.id
+                    ? 'border-l-2 border-accent text-text font-medium bg-accent/5'
+                    : 'border-l-2 border-transparent text-text-secondary hover:bg-hover hover:text-text'}"
+                onclick={() => { activeListId = list.id; contextMenuListId = null; }}
+                ondblclick={() => { if (!list.builtIn && !sidebarCollapsed) startRenaming(list); }}
+                oncontextmenu={(e) => { if (!list.builtIn) toggleContextMenu(e, list.id); }}
+                title={sidebarCollapsed ? `${list.name} (${countForList(list.id)})` : ""}
+              >
+                {#if sidebarCollapsed}
+                  <span class="text-[9px] px-1 py-0 rounded-full bg-bg-card text-text-tertiary min-w-[16px] text-center mx-auto">
+                    {countForList(list.id)}
+                  </span>
+                {:else}
+                  <span class="flex-1 truncate">{list.name}</span>
+                  {#if countForList(list.id) > 0}
+                    <span class="text-[9px] px-1 py-0 rounded-full bg-bg-card text-text-tertiary min-w-[16px] text-center">
+                      {countForList(list.id)}
+                    </span>
+                  {/if}
+                {/if}
+              </button>
+
+              <!-- Context menu -->
+              {#if contextMenuListId === list.id && !sidebarCollapsed}
+                <div class="absolute left-2 top-full mt-0.5 bg-bg-card border border-border rounded-lg shadow-lg py-1 z-20 animate-fade-in min-w-[100px]">
+                  <button
+                    class="w-full text-left px-3 py-1 text-[10px] text-text-secondary hover:bg-hover hover:text-text"
+                    onclick={() => startRenaming(list)}
+                  >Rename</button>
+                  <div class="my-1 h-px bg-border-subtle"></div>
+                  <button
+                    class="w-full text-left px-3 py-1 text-[10px] text-danger hover:bg-hover"
+                    onclick={() => handleDeleteList(list.id)}
+                  >Delete</button>
+                </div>
+              {/if}
+            </div>
+          {/if}
+        {/each}
+      </div>
+
+      <!-- New list -->
+      {#if !sidebarCollapsed}
+        <div class="px-2 py-2 border-t border-border-subtle">
+          {#if showNewList}
+            <input
+              type="text"
+              class="w-full bg-bg-input border border-border rounded px-2 py-1 text-[10px] text-text
+                     placeholder:text-text-tertiary focus:outline-none focus:border-accent"
+              placeholder="List name..."
+              bind:value={newListName}
+              onkeydown={handleCreateList}
+              onblur={() => { showNewList = false; newListName = ""; }}
+              data-no-transition
+              autofocus
+            />
+          {:else}
+            <button
+              class="w-full text-left text-[10px] text-accent hover:text-accent-hover px-1"
+              onclick={() => showNewList = true}
+            >+ New list</button>
+          {/if}
+        </div>
+      {/if}
+    </div>
+
+    <!-- Task list -->
+    <div class="flex-1 overflow-y-auto min-h-0">
+      {#if filteredTasks.length === 0}
+        <div class="flex flex-col items-center justify-center h-full text-center py-12 opacity-60">
+          <svg class="w-10 h-10 text-text-tertiary mb-3" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5">
+            <path d="M9 11l3 3L22 4M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11" stroke-linecap="round" stroke-linejoin="round" />
+          </svg>
+          <p class="text-[13px] text-text-secondary">
+            {searchQuery ? "No matching tasks"
+              : activeListId !== "all" && activeBucket !== "all"
+                ? `No ${activeBucket} tasks in ${activeListName}`
+                : activeListId !== "all"
+                  ? `No tasks in ${activeListName}`
+                  : activeBucket === "all" ? "No tasks yet" : `Nothing in ${activeBucket}`}
+          </p>
+          <p class="text-[11px] text-text-tertiary mt-1">
+            {searchQuery ? "Try a different search" : "Tasks are extracted from transcripts or added above"}
+          </p>
+        </div>
+      {:else}
+        <div class="flex flex-col gap-1">
+          {#each filteredTasks as task (task.id)}
+            <div class="group flex items-start gap-3 px-4 py-3 rounded-xl bg-bg-card border border-border-subtle hover:border-border transition-colors">
+              <!-- Checkbox -->
+              <button
+                aria-label="Complete task"
+                class="mt-0.5 w-[18px] h-[18px] rounded-md border-2 border-border-subtle hover:border-accent flex-shrink-0 flex items-center justify-center transition-colors"
+                onclick={() => completeTask(task.id)}
+              ></button>
+
+              <!-- Content -->
+              <div class="flex-1 min-w-0">
+                <p class="text-[13px] text-text leading-relaxed">{task.text}</p>
+                <div class="flex items-center gap-2 mt-1.5">
+                  <!-- Bucket pills -->
+                  {#each ["today", "soon", "later"] as b}
+                    <button
+                      class="text-[10px] px-2 py-0.5 rounded-full border transition-colors
+                        {task.bucket === b
+                          ? `${BUCKET_COLORS[b]} border-current bg-current/10 font-medium`
+                          : 'text-text-tertiary border-transparent hover:border-border-subtle hover:text-text-secondary'}"
+                      onclick={() => setBucket(task.id, b)}
+                    >{b}</button>
+                  {/each}
+                  <span class="text-border-subtle">&middot;</span>
+                  <!-- Effort pills -->
+                  {#each ["quick", "medium", "deep"] as e}
+                    <button
+                      class="text-[10px] px-2 py-0.5 rounded-full border transition-colors
+                        {task.effort === e
+                          ? 'text-accent border-accent/30 bg-accent/10 font-medium'
+                          : 'text-text-tertiary border-transparent hover:border-border-subtle hover:text-text-secondary'}"
+                      onclick={() => setEffort(task.id, e)}
+                    >{EFFORT_LABELS[e]}</button>
+                  {/each}
+                  <!-- Timestamp -->
+                  {#if task.createdAt}
+                    <span class="text-[10px] text-text-tertiary ml-auto">{formatTimestamp(task.createdAt)}</span>
+                  {/if}
+                </div>
+                <!-- List name (only when viewing all lists) -->
+                {#if activeListId === "all" && getListName(task.listId)}
+                  <p class="text-[10px] text-text-tertiary italic mt-1">{getListName(task.listId)}</p>
+                {/if}
+              </div>
+
+              <!-- Delete -->
+              <button
+                aria-label="Delete task"
+                class="mt-0.5 text-text-tertiary hover:text-danger opacity-0 group-hover:opacity-100 transition-opacity"
+                onclick={() => deleteTask(task.id)}
+              >
+                <svg class="w-4 h-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                  <path d="M18 6L6 18M6 6l12 12" stroke-linecap="round" />
+                </svg>
+              </button>
+            </div>
+          {/each}
+        </div>
+      {/if}
+
+      <!-- Completed section -->
+      {#if completedTasks.length > 0}
+        <div class="mt-6">
+          <button
+            class="flex items-center gap-2 text-[12px] text-text-tertiary hover:text-text-secondary mb-2"
+            onclick={() => showCompleted = !showCompleted}
+          >
+            <svg class="w-3 h-3 transition-transform {showCompleted ? 'rotate-90' : ''}" viewBox="0 0 24 24" fill="currentColor">
+              <path d="M8 5l8 7-8 7z" />
+            </svg>
+            Completed ({completedTasks.length})
+          </button>
+          {#if showCompleted}
+            <div class="flex flex-col gap-1 animate-fade-in">
+              {#each completedTasks as task (task.id)}
+                <div class="group flex items-start gap-3 px-4 py-2.5 rounded-xl opacity-50 hover:opacity-70 transition-opacity">
+                  <button
+                    aria-label="Uncomplete task"
+                    class="mt-0.5 w-[18px] h-[18px] rounded-md border-2 border-accent bg-accent/20 flex-shrink-0 flex items-center justify-center"
+                    onclick={() => uncompleteTask(task.id)}
+                  >
+                    <svg class="w-3 h-3 text-accent" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3">
+                      <path d="M5 12l5 5L20 7" stroke-linecap="round" stroke-linejoin="round" />
+                    </svg>
+                  </button>
+                  <div class="flex-1 min-w-0">
+                    <p class="text-[13px] text-text-secondary line-through">{task.text}</p>
+                    {#if task.doneAt}
+                      <p class="text-[10px] text-text-tertiary mt-0.5">Completed {formatTimestamp(task.doneAt)}</p>
+                    {/if}
+                  </div>
+                  <button
+                    class="mt-0.5 text-text-tertiary hover:text-danger opacity-0 group-hover:opacity-100 transition-opacity"
+                    onclick={() => deleteTask(task.id)}
+                  >
+                    <svg class="w-4 h-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                      <path d="M18 6L6 18M6 6l12 12" stroke-linecap="round" />
+                    </svg>
+                  </button>
+                </div>
+              {/each}
+            </div>
+          {/if}
+        </div>
+      {/if}
+    </div>
+  </div>
+</div>