feat(FN-980): add mission autopilot for autonomous slice progression

- Add MissionAutopilot class with state machine (inactive → watching → activating → completing)
- Add autopilot database schema: autopilotEnabled, autopilotState, lastAutopilotActivityAt columns
- Integrate autopilot with scheduler: handleTaskCompletion() triggers slice activation
- Add API routes: GET/PATCH /missions/:id/autopilot, POST start/stop endpoints
- Add autopilot toggle UI in MissionManager dashboard component
- Add retry logic with exponential backoff (up to 3 attempts) for slice activation
- Add background poll (60s) to detect stale autopilot missions
- Include changeset for @gsxdsm/fusion minor bump

packages/core/src/db.test.ts

@@ -89,7 +89,7 @@ describe("Database", () => {
     });
 
     it("seeds schema version", () => {
-      expect(db.getSchemaVersion()).toBe(9);
+      expect(db.getSchemaVersion()).toBe(10);
     });
 
     it("seeds lastModified", () => {
@@ -112,7 +112,7 @@ describe("Database", () => {
 
     it("is idempotent - calling init() twice does not fail", () => {
       expect(() => db.init()).not.toThrow();
-      expect(db.getSchemaVersion()).toBe(9);
+      expect(db.getSchemaVersion()).toBe(10);
     });
 
     it("does not overwrite existing config on re-init", () => {
@@ -719,7 +719,7 @@ describe("schema migrations", () => {
     db.init();
 
     // Verify version bumped to 5 (includes v1→v2, v2→v3, v3→v4, and v4→v5 migrations)
-    expect(db.getSchemaVersion()).toBe(9);
+    expect(db.getSchemaVersion()).toBe(10);
 
     // Verify new columns exist and existing data is intact
     const cols = db.prepare("PRAGMA table_info(tasks)").all() as Array<{ name: string }>;
@@ -744,11 +744,11 @@ describe("schema migrations", () => {
     const db = new Database(kbDir);
     db.init();
 
-    expect(db.getSchemaVersion()).toBe(9);
+    expect(db.getSchemaVersion()).toBe(10);
 
     // Re-init should not fail
     db.init();
-    expect(db.getSchemaVersion()).toBe(9);
+    expect(db.getSchemaVersion()).toBe(10);
 
     db.close();
   });
@@ -843,7 +843,7 @@ describe("schema migrations", () => {
     db.init();
 
     // Verify version bumped to 5
-    expect(db.getSchemaVersion()).toBe(9);
+    expect(db.getSchemaVersion()).toBe(10);
 
     // Verify new columns exist and existing data is intact
     const cols = db.prepare("PRAGMA table_info(tasks)").all() as Array<{ name: string }>;
@@ -1053,7 +1053,7 @@ describe("createDatabase factory", () => {
     const db = createDatabase(kbDir);
     db.init();
 
-    expect(db.getSchemaVersion()).toBe(9);
+    expect(db.getSchemaVersion()).toBe(10);
     expect(db.getLastModified()).toBeGreaterThan(0);
 
     db.close();

packages/core/src/db.ts

@@ -450,6 +450,14 @@ export class Database {
 
     // Future migrations go here:
     // if (version < 10) { this.applyMigration(10, () => { ... }); }
+
+    if (version < 10) {
+      this.applyMigration(10, () => {
+        this.addColumnIfMissing("missions", "autopilotEnabled", "INTEGER DEFAULT 0");
+        this.addColumnIfMissing("missions", "autopilotState", "TEXT DEFAULT 'inactive'");
+        this.addColumnIfMissing("missions", "lastAutopilotActivityAt", "TEXT");
+      });
+    }
   }
 
   /**

packages/core/src/index.ts

@@ -80,6 +80,7 @@ export {
   SLICE_STATUSES,
   FEATURE_STATUSES,
   INTERVIEW_STATES,
+  AUTOPILOT_STATES,
 } from "./mission-types.js";
 export type {
   MissionStatus,
@@ -87,6 +88,8 @@ export type {
   SliceStatus,
   FeatureStatus,
   InterviewState,
+  AutopilotState,
+  AutopilotStatus,
   Mission,
   Milestone,
   Slice,

packages/core/src/mission-store.ts

@@ -29,6 +29,7 @@ import type {
   SliceStatus,
   FeatureStatus,
   InterviewState,
+  AutopilotState,
 } from "./mission-types.js";
 
 // ── Mission Summary Type ─────────────────────────────────────────────
@@ -112,6 +113,9 @@ export class MissionStore extends EventEmitter<MissionStoreEvents> {
       status: row.status as MissionStatus,
       interviewState: row.interviewState as InterviewState,
       autoAdvance: Boolean(row.autoAdvance),
+      autopilotEnabled: Boolean(row.autopilotEnabled),
+      autopilotState: (row.autopilotState as AutopilotState) || "inactive",
+      lastAutopilotActivityAt: row.lastAutopilotActivityAt || undefined,
       createdAt: row.createdAt,
       updatedAt: row.updatedAt,
     };
@@ -178,7 +182,7 @@ export class MissionStore extends EventEmitter<MissionStoreEvents> {
    * @param input - Mission creation input
    * @returns The created mission
    */
-  createMission(input: MissionCreateInput): Mission {
+  createMission(input: MissionCreateInput & { autopilotEnabled?: boolean }): Mission {
     const now = new Date().toISOString();
     const id = this.generateMissionId();
 
@@ -189,13 +193,15 @@ export class MissionStore extends EventEmitter<MissionStoreEvents> {
       status: "planning",
       interviewState: "not_started",
       autoAdvance: false,
+      autopilotEnabled: input.autopilotEnabled ?? false,
+      autopilotState: "inactive",
       createdAt: now,
       updatedAt: now,
     };
 
     this.db.prepare(`
-      INSERT INTO missions (id, title, description, status, interviewState, autoAdvance, createdAt, updatedAt)
-      VALUES (?, ?, ?, ?, ?, ?, ?, ?)
+      INSERT INTO missions (id, title, description, status, interviewState, autoAdvance, autopilotEnabled, autopilotState, createdAt, updatedAt)
+      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
     `).run(
       mission.id,
       mission.title,
@@ -203,6 +209,8 @@ export class MissionStore extends EventEmitter<MissionStoreEvents> {
       mission.status,
       mission.interviewState,
       mission.autoAdvance ? 1 : 0,
+      mission.autopilotEnabled ? 1 : 0,
+      mission.autopilotState ?? "inactive",
       mission.createdAt,
       mission.updatedAt,
     );
@@ -337,6 +345,9 @@ export class MissionStore extends EventEmitter<MissionStoreEvents> {
         status = ?,
         interviewState = ?,
         autoAdvance = ?,
+        autopilotEnabled = ?,
+        autopilotState = ?,
+        lastAutopilotActivityAt = ?,
         updatedAt = ?
       WHERE id = ?
     `).run(
@@ -345,6 +356,9 @@ export class MissionStore extends EventEmitter<MissionStoreEvents> {
       updated.status,
       updated.interviewState,
       updated.autoAdvance ? 1 : 0,
+      updated.autopilotEnabled ? 1 : 0,
+      updated.autopilotState ?? "inactive",
+      updated.lastAutopilotActivityAt ?? null,
       updated.updatedAt,
       updated.id,
     );

packages/core/src/mission-types.ts

@@ -31,6 +31,19 @@ export type FeatureStatus = (typeof FEATURE_STATUSES)[number];
 export const INTERVIEW_STATES = ["not_started", "in_progress", "completed", "needs_update"] as const;
 export type InterviewState = (typeof INTERVIEW_STATES)[number];
 
+/** Autopilot state values for mission autonomous progression */
+export const AUTOPILOT_STATES = ["inactive", "watching", "activating", "completing"] as const;
+export type AutopilotState = (typeof AUTOPILOT_STATES)[number];
+
+/** Autopilot status for a mission */
+export interface AutopilotStatus {
+  enabled: boolean;
+  state: AutopilotState;
+  watched: boolean;
+  lastActivityAt?: string;
+  nextScheduledCheck?: string;
+}
+
 // ── Core Entity Types ───────────────────────────────────────────────
 
 /**
@@ -50,6 +63,12 @@ export interface Mission {
   interviewState: InterviewState;
   /** When true, automatically activate the next pending slice when current slice completes */
   autoAdvance?: boolean;
+  /** When true, enable autopilot monitoring system for this mission */
+  autopilotEnabled?: boolean;
+  /** Current autopilot runtime state */
+  autopilotState?: AutopilotState;
+  /** ISO-8601 timestamp of last autopilot activity (only populated when active) */
+  lastAutopilotActivityAt?: string;
   /** ISO-8601 timestamp of creation */
   createdAt: string;
   /** ISO-8601 timestamp of last update */