feat: add OPC (One Person Company) management system with Kanban board

Phase 1 MVP implementation:
- PostgreSQL database schema for tasks, agents, executions, time tracking
- Backend API: task CRUD, agent management, automatic time tracking
- Frontend: Kanban board with drag-and-drop (Parking Lot → In Progress → Done)
- Task modal for creating/editing tasks with tags, priority, assignee
- 3 core agents seeded: PM, CTO, COO
- Agent approval workflow: CxO level requires approval, others auto-execute
- Automatic time tracking: starts on in_progress, stops on done
- RBAC integration: OPC page accessible to admin/member roles

Features:
- Drag-and-drop tasks between columns
- Assign tasks to humans or AI agents
- Priority badges (low, medium, high, urgent)
- Tags and due dates
- Task history tracking
- Time entry tracking with automatic timer
- Agent execution records with approval workflow

Next steps:
- Initialize OPC database on NAS
- Implement agent executor service
- Add WebSocket for real-time updates
- Add email notifications
- Add PDF invoice generation

dashboard/frontend/src/components/Sidebar.svelte

@@ -20,6 +20,7 @@
     { id: "dashboard", label: "Overview", icon: "grid" },
     { id: "info-engine", label: "Info Engine", icon: "sparkles" },
     { id: "litellm", label: "LiteLLM", icon: "bolt" },
+    { id: "opc", label: "OPC", icon: "kanban" },
     { id: "docker", label: "Docker", icon: "box" },
     { id: "files", label: "Files", icon: "folder" },
     { id: "terminal", label: "Terminal", icon: "terminal" },
@@ -243,6 +244,8 @@
       <svg class="w-[18px] h-[18px]" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.8"><path stroke-linecap="round" stroke-linejoin="round" d="M8 9l3 3-3 3m5 0h3M5 20h14a2 2 0 002-2V6a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z" /></svg>
     {:else if icon === "shield"}
       <svg class="w-[18px] h-[18px]" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.8"><path stroke-linecap="round" stroke-linejoin="round" d="M9 12l2 2 4-4m5.618-4.016A11.955 11.955 0 0112 2.944a11.955 11.955 0 01-8.618 3.04A12.02 12.02 0 003 9c0 5.591 3.824 10.29 9 11.622 5.176-1.332 9-6.03 9-11.622 0-1.042-.133-2.052-.382-3.016z" /></svg>
+    {:else if icon === "kanban"}
+      <svg class="w-[18px] h-[18px]" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.8"><path stroke-linecap="round" stroke-linejoin="round" d="M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h2a2 2 0 002-2V7a2 2 0 00-2-2zm8 0h-2a2 2 0 00-2 2v8a2 2 0 002 2h2a2 2 0 002-2V7a2 2 0 00-2-2z" /></svg>
     {:else if icon === "music"}
       <svg class="w-[16px] h-[16px]" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.8"><path stroke-linecap="round" stroke-linejoin="round" d="M9 19V6l12-3v13M9 19c0 1.105-1.343 2-3 2s-3-.895-3-2 1.343-2 3-2 3 .895 3 2zm12-3c0 1.105-1.343 2-3 2s-3-.895-3-2 1.343-2 3-2 3 .895 3 2z" /></svg>
     {:else if icon === "play"}

dashboard/frontend/src/components/opc/KanbanBoard.svelte

@@ -0,0 +1,40 @@
+<script>
+  import KanbanColumn from "./KanbanColumn.svelte";
+  import { moveTask } from "../../lib/opc-api.js";
+
+  let { tasks = [], agents = [], onEdit, onDelete, onAssign, onTaskMoved } = $props();
+
+  const columns = [
+    { id: "parking_lot", title: "Parking Lot", status: "parking_lot" },
+    { id: "in_progress", title: "In Progress", status: "in_progress" },
+    { id: "done", title: "Done", status: "done" }
+  ];
+
+  function getTasksByStatus(status) {
+    return tasks.filter(t => t.status === status);
+  }
+
+  async function handleDrop(taskId, newStatus) {
+    try {
+      await moveTask(taskId, newStatus);
+      onTaskMoved?.(taskId, newStatus);
+    } catch (e) {
+      alert("Failed to move task: " + e.message);
+    }
+  }
+</script>
+
+<div class="grid grid-cols-1 md:grid-cols-3 gap-4 h-full">
+  {#each columns as column}
+    <KanbanColumn
+      title={column.title}
+      status={column.status}
+      tasks={getTasksByStatus(column.status)}
+      {agents}
+      {onEdit}
+      {onDelete}
+      {onAssign}
+      onDrop={handleDrop}
+    />
+  {/each}
+</div>

dashboard/frontend/src/components/opc/KanbanColumn.svelte

@@ -0,0 +1,85 @@
+<script>
+  import TaskCard from "./TaskCard.svelte";
+
+  let {
+    title,
+    status,
+    tasks = [],
+    agents = [],
+    onEdit,
+    onDelete,
+    onAssign,
+    onDrop
+  } = $props();
+
+  const columnColors = {
+    parking_lot: "bg-slate-100 dark:bg-slate-800 border-slate-300",
+    in_progress: "bg-blue-50 dark:bg-blue-900/20 border-blue-300",
+    done: "bg-emerald-50 dark:bg-emerald-900/20 border-emerald-300"
+  };
+
+  function handleDragOver(e) {
+    e.preventDefault();
+    e.currentTarget.classList.add("ring-2", "ring-primary-400");
+  }
+
+  function handleDragLeave(e) {
+    e.currentTarget.classList.remove("ring-2", "ring-primary-400");
+  }
+
+  function handleDrop(e) {
+    e.preventDefault();
+    e.currentTarget.classList.remove("ring-2", "ring-primary-400");
+
+    const taskId = parseInt(e.dataTransfer.getData("taskId"));
+    const fromStatus = e.dataTransfer.getData("fromStatus");
+
+    if (fromStatus !== status) {
+      onDrop?.(taskId, status);
+    }
+  }
+
+  function handleDragStart(e, task) {
+    e.dataTransfer.setData("taskId", task.id);
+    e.dataTransfer.setData("fromStatus", task.status);
+    e.dataTransfer.effectAllowed = "move";
+  }
+</script>
+
+<div class="flex flex-col h-full">
+  <!-- Column header -->
+  <div class="flex items-center justify-between mb-3 pb-2 border-b border-surface-300 dark:border-surface-600">
+    <h3 class="font-semibold text-surface-900 dark:text-surface-100">
+      {title}
+    </h3>
+    <span class="text-sm text-surface-600 dark:text-surface-400 bg-surface-200 dark:bg-surface-700 px-2 py-0.5 rounded-full">
+      {tasks.length}
+    </span>
+  </div>
+
+  <!-- Drop zone -->
+  <div
+    class="flex-1 min-h-[200px] p-2 rounded-lg border-2 border-dashed transition-all {columnColors[status] || columnColors.parking_lot}"
+    ondragover={handleDragOver}
+    ondragleave={handleDragLeave}
+    ondrop={handleDrop}
+  >
+    {#if tasks.length === 0}
+      <div class="flex items-center justify-center h-32 text-surface-400 dark:text-surface-500 text-sm">
+        Drop tasks here
+      </div>
+    {:else}
+      {#each tasks as task (task.id)}
+        <div draggable="true" ondragstart={(e) => handleDragStart(e, task)}>
+          <TaskCard
+            {task}
+            {agents}
+            {onEdit}
+            {onDelete}
+            {onAssign}
+          />
+        </div>
+      {/each}
+    {/if}
+  </div>
+</div>

dashboard/frontend/src/components/opc/TaskCard.svelte

@@ -0,0 +1,169 @@
+<script>
+  import { deleteTask, assignTask, getTaskTime } from "../../lib/opc-api.js";
+
+  let { task, agents = [], onEdit, onDelete, onAssign } = $props();
+
+  let showActions = $state(false);
+  let timeInfo = $state(null);
+
+  const priorityColors = {
+    low: "bg-slate-200 text-slate-700",
+    medium: "bg-blue-100 text-blue-700",
+    high: "bg-amber-100 text-amber-700",
+    urgent: "bg-rose-100 text-rose-700"
+  };
+
+  async function loadTimeInfo() {
+    if (task.status === "in_progress") {
+      try {
+        timeInfo = await getTaskTime(task.id);
+      } catch (e) {
+        console.error("Failed to load time info:", e);
+      }
+    }
+  }
+
+  $effect(() => {
+    loadTimeInfo();
+  });
+
+  async function handleDelete() {
+    if (confirm(`Delete task "${task.title}"?`)) {
+      try {
+        await deleteTask(task.id);
+        onDelete?.(task.id);
+      } catch (e) {
+        alert("Failed to delete task: " + e.message);
+      }
+    }
+  }
+
+  async function handleAssignAgent(agentId) {
+    try {
+      await assignTask(task.id, agentId, "agent");
+      onAssign?.(task.id, agentId, "agent");
+    } catch (e) {
+      alert("Failed to assign agent: " + e.message);
+    }
+  }
+
+  function getAgentIcon(agentId) {
+    const icons = {
+      pm: "📋",
+      cto: "💻",
+      coo: "⚙️",
+      ceo: "🎯",
+      marketing: "📢",
+      social_media: "📱"
+    };
+    return icons[agentId] || "🤖";
+  }
+</script>
+
+<div
+  class="bg-white dark:bg-surface-800 rounded-lg p-3 mb-2 shadow-sm border border-surface-200 dark:border-surface-700 cursor-move hover:shadow-md transition-shadow"
+  onmouseenter={() => showActions = true}
+  onmouseleave={() => showActions = false}
+>
+  <!-- Priority badge -->
+  <div class="flex items-start justify-between mb-2">
+    <span class="text-xs px-2 py-0.5 rounded {priorityColors[task.priority] || priorityColors.medium}">
+      {task.priority}
+    </span>
+    {#if showActions}
+      <div class="flex gap-1">
+        <button
+          onclick={() => onEdit?.(task)}
+          class="text-xs text-surface-600 hover:text-primary-600 dark:text-surface-400"
+          title="Edit"
+        >
+          ✏️
+        </button>
+        <button
+          onclick={handleDelete}
+          class="text-xs text-surface-600 hover:text-rose-600 dark:text-surface-400"
+          title="Delete"
+        >
+          🗑️
+        </button>
+      </div>
+    {/if}
+  </div>
+
+  <!-- Title -->
+  <h4 class="font-medium text-surface-900 dark:text-surface-100 mb-1 text-sm">
+    {task.title}
+  </h4>
+
+  <!-- Description preview -->
+  {#if task.description}
+    <p class="text-xs text-surface-600 dark:text-surface-400 mb-2 line-clamp-2">
+      {task.description}
+    </p>
+  {/if}
+
+  <!-- Tags -->
+  {#if task.tags && task.tags.length > 0}
+    <div class="flex flex-wrap gap-1 mb-2">
+      {#each task.tags as tag}
+        <span class="text-xs px-1.5 py-0.5 rounded bg-surface-100 dark:bg-surface-700 text-surface-700 dark:text-surface-300">
+          {tag}
+        </span>
+      {/each}
+    </div>
+  {/if}
+
+  <!-- Assignee and time -->
+  <div class="flex items-center justify-between text-xs text-surface-600 dark:text-surface-400">
+    <div class="flex items-center gap-1">
+      {#if task.assigned_to}
+        {#if task.assigned_type === "agent"}
+          <span title={task.assigned_to}>
+            {getAgentIcon(task.assigned_to)}
+          </span>
+        {:else}
+          <span>👤 {task.assigned_to}</span>
+        {/if}
+      {:else}
+        <button
+          onclick={() => showActions = true}
+          class="text-surface-500 hover:text-primary-600"
+          title="Assign"
+        >
+          Unassigned
+        </button>
+      {/if}
+    </div>
+
+    {#if timeInfo && timeInfo.total_hours > 0}
+      <span class="text-xs text-surface-500">
+        ⏱️ {timeInfo.total_hours}h
+      </span>
+    {/if}
+  </div>
+
+  <!-- Due date -->
+  {#if task.due_date}
+    <div class="text-xs text-surface-500 mt-1">
+      📅 {new Date(task.due_date).toLocaleDateString()}
+    </div>
+  {/if}
+
+  <!-- Quick assign to agent (when hovering) -->
+  {#if showActions && !task.assigned_to}
+    <div class="mt-2 pt-2 border-t border-surface-200 dark:border-surface-700">
+      <div class="text-xs text-surface-600 mb-1">Assign to agent:</div>
+      <div class="flex gap-1">
+        {#each agents as agent}
+          <button
+            onclick={() => handleAssignAgent(agent.id)}
+            class="text-lg hover:scale-110 transition-transform"
+            title={agent.name}
+          >
+            {getAgentIcon(agent.id)}
+          </button>
+        {/each}
+      </div>
+    </div>
+  {/if}
+</div>

dashboard/frontend/src/components/opc/TaskModal.svelte

@@ -0,0 +1,250 @@
+<script>
+  import { createTask, updateTask } from "../../lib/opc-api.js";
+
+  let { task = null, agents = [], onClose, onSave } = $props();
+
+  let isEdit = $state(!!task);
+  let formData = $state({
+    title: task?.title || "",
+    description: task?.description || "",
+    status: task?.status || "parking_lot",
+    priority: task?.priority || "medium",
+    assigned_to: task?.assigned_to || "",
+    assigned_type: task?.assigned_type || "human",
+    tags: task?.tags || [],
+    due_date: task?.due_date ? task.due_date.split("T")[0] : ""
+  });
+
+  let tagInput = $state("");
+  let saving = $state(false);
+
+  function addTag() {
+    if (tagInput.trim() && !formData.tags.includes(tagInput.trim())) {
+      formData.tags = [...formData.tags, tagInput.trim()];
+      tagInput = "";
+    }
+  }
+
+  function removeTag(tag) {
+    formData.tags = formData.tags.filter(t => t !== tag);
+  }
+
+  async function handleSubmit(e) {
+    e.preventDefault();
+    saving = true;
+
+    try {
+      const payload = {
+        ...formData,
+        due_date: formData.due_date ? new Date(formData.due_date).toISOString() : null,
+        assigned_to: formData.assigned_to || null
+      };
+
+      if (isEdit) {
+        await updateTask(task.id, payload);
+      } else {
+        await createTask(payload);
+      }
+
+      onSave?.();
+      onClose?.();
+    } catch (e) {
+      alert("Failed to save task: " + e.message);
+    } finally {
+      saving = false;
+    }
+  }
+</script>
+
+<!-- Modal backdrop -->
+<div
+  class="fixed inset-0 bg-black/50 flex items-center justify-center z-50 p-4"
+  onclick={(e) => e.target === e.currentTarget && onClose?.()}
+>
+  <!-- Modal content -->
+  <div class="bg-white dark:bg-surface-800 rounded-lg shadow-xl max-w-2xl w-full max-h-[90vh] overflow-y-auto">
+    <!-- Header -->
+    <div class="flex items-center justify-between p-4 border-b border-surface-200 dark:border-surface-700">
+      <h2 class="text-xl font-semibold text-surface-900 dark:text-surface-100">
+        {isEdit ? "Edit Task" : "Create Task"}
+      </h2>
+      <button
+        onclick={onClose}
+        class="text-surface-500 hover:text-surface-700 dark:hover:text-surface-300"
+      >
+        ✕
+      </button>
+    </div>
+
+    <!-- Form -->
+    <form onsubmit={handleSubmit} class="p-4 space-y-4">
+      <!-- Title -->
+      <div>
+        <label class="block text-sm font-medium text-surface-700 dark:text-surface-300 mb-1">
+          Title *
+        </label>
+        <input
+          type="text"
+          bind:value={formData.title}
+          required
+          class="w-full px-3 py-2 border border-surface-300 dark:border-surface-600 rounded-lg bg-white dark:bg-surface-900 text-surface-900 dark:text-surface-100"
+          placeholder="Task title"
+        />
+      </div>
+
+      <!-- Description -->
+      <div>
+        <label class="block text-sm font-medium text-surface-700 dark:text-surface-300 mb-1">
+          Description
+        </label>
+        <textarea
+          bind:value={formData.description}
+          rows="4"
+          class="w-full px-3 py-2 border border-surface-300 dark:border-surface-600 rounded-lg bg-white dark:bg-surface-900 text-surface-900 dark:text-surface-100"
+          placeholder="Task description"
+        ></textarea>
+      </div>
+
+      <!-- Status and Priority -->
+      <div class="grid grid-cols-2 gap-4">
+        <div>
+          <label class="block text-sm font-medium text-surface-700 dark:text-surface-300 mb-1">
+            Status
+          </label>
+          <select
+            bind:value={formData.status}
+            class="w-full px-3 py-2 border border-surface-300 dark:border-surface-600 rounded-lg bg-white dark:bg-surface-900 text-surface-900 dark:text-surface-100"
+          >
+            <option value="parking_lot">Parking Lot</option>
+            <option value="in_progress">In Progress</option>
+            <option value="done">Done</option>
+          </select>
+        </div>
+
+        <div>
+          <label class="block text-sm font-medium text-surface-700 dark:text-surface-300 mb-1">
+            Priority
+          </label>
+          <select
+            bind:value={formData.priority}
+            class="w-full px-3 py-2 border border-surface-300 dark:border-surface-600 rounded-lg bg-white dark:bg-surface-900 text-surface-900 dark:text-surface-100"
+          >
+            <option value="low">Low</option>
+            <option value="medium">Medium</option>
+            <option value="high">High</option>
+            <option value="urgent">Urgent</option>
+          </select>
+        </div>
+      </div>
+
+      <!-- Assignee -->
+      <div class="grid grid-cols-2 gap-4">
+        <div>
+          <label class="block text-sm font-medium text-surface-700 dark:text-surface-300 mb-1">
+            Assign to
+          </label>
+          <select
+            bind:value={formData.assigned_type}
+            class="w-full px-3 py-2 border border-surface-300 dark:border-surface-600 rounded-lg bg-white dark:bg-surface-900 text-surface-900 dark:text-surface-100"
+          >
+            <option value="human">Human</option>
+            <option value="agent">Agent</option>
+          </select>
+        </div>
+
+        <div>
+          <label class="block text-sm font-medium text-surface-700 dark:text-surface-300 mb-1">
+            {formData.assigned_type === "agent" ? "Agent" : "Username"}
+          </label>
+          {#if formData.assigned_type === "agent"}
+            <select
+              bind:value={formData.assigned_to}
+              class="w-full px-3 py-2 border border-surface-300 dark:border-surface-600 rounded-lg bg-white dark:bg-surface-900 text-surface-900 dark:text-surface-100"
+            >
+              <option value="">Unassigned</option>
+              {#each agents as agent}
+                <option value={agent.id}>{agent.name}</option>
+              {/each}
+            </select>
+          {:else}
+            <input
+              type="text"
+              bind:value={formData.assigned_to}
+              class="w-full px-3 py-2 border border-surface-300 dark:border-surface-600 rounded-lg bg-white dark:bg-surface-900 text-surface-900 dark:text-surface-100"
+              placeholder="Username"
+            />
+          {/if}
+        </div>
+      </div>
+
+      <!-- Due date -->
+      <div>
+        <label class="block text-sm font-medium text-surface-700 dark:text-surface-300 mb-1">
+          Due Date
+        </label>
+        <input
+          type="date"
+          bind:value={formData.due_date}
+          class="w-full px-3 py-2 border border-surface-300 dark:border-surface-600 rounded-lg bg-white dark:bg-surface-900 text-surface-900 dark:text-surface-100"
+        />
+      </div>
+
+      <!-- Tags -->
+      <div>
+        <label class="block text-sm font-medium text-surface-700 dark:text-surface-300 mb-1">
+          Tags
+        </label>
+        <div class="flex gap-2 mb-2">
+          <input
+            type="text"
+            bind:value={tagInput}
+            onkeydown={(e) => e.key === "Enter" && (e.preventDefault(), addTag())}
+            class="flex-1 px-3 py-2 border border-surface-300 dark:border-surface-600 rounded-lg bg-white dark:bg-surface-900 text-surface-900 dark:text-surface-100"
+            placeholder="Add tag and press Enter"
+          />
+          <button
+            type="button"
+            onclick={addTag}
+            class="px-4 py-2 bg-surface-200 dark:bg-surface-700 text-surface-700 dark:text-surface-300 rounded-lg hover:bg-surface-300 dark:hover:bg-surface-600"
+          >
+            Add
+          </button>
+        </div>
+        {#if formData.tags.length > 0}
+          <div class="flex flex-wrap gap-2">
+            {#each formData.tags as tag}
+              <span class="inline-flex items-center gap-1 px-2 py-1 bg-primary-100 dark:bg-primary-900/30 text-primary-700 dark:text-primary-300 rounded text-sm">
+                {tag}
+                <button
+                  type="button"
+                  onclick={() => removeTag(tag)}
+                  class="hover:text-primary-900 dark:hover:text-primary-100"
+                >
+                  ✕
+                </button>
+              </span>
+            {/each}
+          </div>
+        {/if}
+      </div>
+
+      <!-- Actions -->
+      <div class="flex justify-end gap-2 pt-4 border-t border-surface-200 dark:border-surface-700">
+        <button
+          type="button"
+          onclick={onClose}
+          class="px-4 py-2 text-surface-700 dark:text-surface-300 hover:bg-surface-100 dark:hover:bg-surface-700 rounded-lg"
+        >
+          Cancel
+        </button>
+        <button
+          type="submit"
+          disabled={saving}
+          class="px-4 py-2 bg-primary-600 text-white rounded-lg hover:bg-primary-700 disabled:opacity-50"
+        >
+          {saving ? "Saving..." : isEdit ? "Update" : "Create"}
+        </button>
+      </div>
+    </form>
+  </div>
+</div>