recover: restore untracked work from recovery branch (no Gemini changes)

Recovered files with no Claude→Agent contamination:
- docs/adr/002-task-state-machine.md
- internal/api/logs.go/logs_test.go: task-level log streaming endpoint
- internal/api/validate.go/validate_test.go: POST /api/tasks/validate
- internal/api/server_test.go, storage/db_test.go: expanded test coverage
- scripts/reset-failed-tasks, reset-running-tasks
- web/app.js, index.html, style.css: frontend improvements
- web/test/: active-tasks-tab, delete-button, filter-tabs, sort-tasks tests

Manually applied from server.go diff (skipping Claude→Agent rename):
- taskLogStore field + validateCmdPath field
- DELETE /api/tasks/{id} route + handleDeleteTask
- GET /api/tasks/{id}/logs/stream route
- POST /api/tasks/{id}/resume route + handleResumeTimedOutTask
- handleCancelTask: allow cancelling PENDING/QUEUED tasks directly

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 25 insertions, 4 deletions

diff --git a/web/test/task-actions.test.mjs b/web/test/task-actions.test.mjs
index 2df6523..36c0e8b 100644
--- a/web/test/task-actions.test.mjs
+++ b/web/test/task-actions.test.mjs
@@ -1,4 +1,4 @@
-// task-actions.test.mjs — button visibility logic for Cancel/Restart actions
+// task-actions.test.mjs — button visibility logic for Cancel/Restart/Resume actions
 //
 // Run with: node --test web/test/task-actions.test.mjs
 
@@ -7,16 +7,23 @@ import assert from 'node:assert/strict';
 
 // ── Logic under test ──────────────────────────────────────────────────────────
 
-const RESTART_STATES = new Set(['FAILED', 'TIMED_OUT', 'CANCELLED']);
+const RESTART_STATES = new Set(['FAILED', 'CANCELLED']);
 
 function getCardAction(state) {
   if (state === 'PENDING') return 'run';
   if (state === 'RUNNING') return 'cancel';
   if (state === 'READY') return 'approve';
+  if (state === 'TIMED_OUT') return 'resume';
   if (RESTART_STATES.has(state)) return 'restart';
   return null;
 }
 
+function getApiEndpoint(state) {
+  if (state === 'TIMED_OUT') return '/resume';
+  if (RESTART_STATES.has(state)) return '/run';
+  return null;
+}
+
 // ── Tests ─────────────────────────────────────────────────────────────────────
 
 describe('task card action buttons', () => {
@@ -32,8 +39,8 @@ describe('task card action buttons', () => {
     assert.equal(getCardAction('FAILED'), 'restart');
   });
 
-  it('shows Restart button for TIMED_OUT', () => {
-    assert.equal(getCardAction('TIMED_OUT'), 'restart');
+  it('shows Resume button for TIMED_OUT', () => {
+    assert.equal(getCardAction('TIMED_OUT'), 'resume');
   });
 
   it('shows Restart button for CANCELLED', () => {
@@ -56,3 +63,17 @@ describe('task card action buttons', () => {
     assert.equal(getCardAction('BUDGET_EXCEEDED'), null);
   });
 });
+
+describe('task action API endpoints', () => {
+  it('TIMED_OUT uses /resume endpoint', () => {
+    assert.equal(getApiEndpoint('TIMED_OUT'), '/resume');
+  });
+
+  it('FAILED uses /run endpoint', () => {
+    assert.equal(getApiEndpoint('FAILED'), '/run');
+  });
+
+  it('CANCELLED uses /run endpoint', () => {
+    assert.equal(getApiEndpoint('CANCELLED'), '/run');
+  });
+});