feat(boulder-state): add BoulderWorkState and timing fields to types

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/features/boulder-state/types.test.ts

@@ -0,0 +1,78 @@
+import { describe, expect, test } from "bun:test"
+import type {
+  BoulderSessionOrigin,
+  BoulderState,
+  BoulderTaskStatus,
+  BoulderWorkResumeOption,
+  BoulderWorkState,
+  BoulderWorkStatus,
+  PlanProgress,
+  TaskSessionState,
+} from "./types"
+
+describe("boulder-state types", () => {
+  test("keeps legacy BoulderState assignable while allowing v2 fields", () => {
+    // given
+    const legacyState: BoulderState = {
+      active_plan: "/tmp/plan.md",
+      started_at: "2026-01-01T00:00:00.000Z",
+      session_ids: ["ses_1"],
+      plan_name: "plan",
+    }
+
+    // when
+    const hasLegacyShape = legacyState.active_plan.length > 0
+
+    // then
+    expect(hasLegacyShape).toBe(true)
+  })
+
+  test("supports multi-work and timer fields", () => {
+    // given
+    const taskStatus: BoulderTaskStatus = "running"
+    const workStatus: BoulderWorkStatus = "active"
+    const origin: BoulderSessionOrigin = "direct"
+
+    const taskSession: TaskSessionState = {
+      task_key: "todo:1",
+      task_label: "1",
+      task_title: "Do work",
+      session_id: "ses_task",
+      started_at: "2026-01-01T00:00:00.000Z",
+      ended_at: "2026-01-01T00:00:01.000Z",
+      elapsed_ms: 1000,
+      status: taskStatus,
+      updated_at: "2026-01-01T00:00:01.000Z",
+    }
+
+    const work: BoulderWorkState = {
+      work_id: "plan-abc12345",
+      active_plan: "/tmp/plan.md",
+      plan_name: "plan",
+      status: workStatus,
+      started_at: "2026-01-01T00:00:00.000Z",
+      session_ids: ["ses_1"],
+      session_origins: { ses_1: origin },
+      task_sessions: { "todo:1": taskSession },
+    }
+
+    const progress: PlanProgress = { total: 2, completed: 1, isComplete: false }
+    const resumeOption: BoulderWorkResumeOption = {
+      work_id: work.work_id,
+      plan_name: work.plan_name,
+      active_plan: work.active_plan,
+      status: "paused",
+      started_at: work.started_at,
+      updated_at: "2026-01-01T00:00:02.000Z",
+      session_count: 1,
+      progress,
+      is_current_mirror: false,
+    }
+
+    // when
+    const combined = { taskSession, work, resumeOption }
+
+    // then
+    expect(combined.resumeOption.progress.total).toBe(2)
+  })
+})

src/features/boulder-state/types.ts

@@ -6,10 +6,17 @@
  */
 
 export interface BoulderState {
+  schema_version?: 2
+  active_work_id?: string
+  works?: Record<string, BoulderWorkState>
   /** Absolute path to the active plan file */
   active_plan: string
   /** ISO timestamp when work started */
   started_at: string
+  ended_at?: string
+  elapsed_ms?: number
+  status?: BoulderWorkStatus
+  updated_at?: string
   /** Session IDs that have worked on this plan */
   session_ids: string[]
   session_origins?: Record<string, "direct" | "appended">
@@ -23,6 +30,26 @@ export interface BoulderState {
   task_sessions?: Record<string, TaskSessionState>
 }
 
+export type BoulderSessionOrigin = "direct" | "appended"
+export type BoulderWorkStatus = "active" | "completed" | "paused" | "abandoned"
+export type BoulderTaskStatus = "running" | "completed" | "cancelled"
+
+export interface BoulderWorkState {
+  work_id: string
+  active_plan: string
+  plan_name: string
+  status?: BoulderWorkStatus
+  started_at: string
+  ended_at?: string
+  elapsed_ms?: number
+  updated_at?: string
+  session_ids: string[]
+  session_origins?: Record<string, BoulderSessionOrigin>
+  agent?: string
+  worktree_path?: string
+  task_sessions?: Record<string, TaskSessionState>
+}
+
 export interface PlanProgress {
   /** Total number of checkboxes */
   total: number
@@ -45,10 +72,29 @@ export interface TaskSessionState {
   agent?: string
   /** Category associated with the task session, when known */
   category?: string
+  started_at?: string
+  ended_at?: string
+  elapsed_ms?: number
+  status?: BoulderTaskStatus
   /** Last update timestamp */
   updated_at: string
 }
 
+export interface BoulderWorkResumeOption {
+  work_id: string
+  plan_name: string
+  active_plan: string
+  worktree_path?: string
+  status: BoulderWorkStatus
+  started_at: string
+  updated_at: string
+  ended_at?: string
+  elapsed_ms?: number
+  session_count: number
+  progress: PlanProgress
+  is_current_mirror: boolean
+}
+
 export interface TopLevelTaskRef {
   /** Stable identifier for the current top-level plan task */
   key: string