feat: document UI with contract blocks, expandable logs, and interaction controls (#97)

* feat: soryu-co/soryu - makima: Rename tasks to contracts in directive API and types

* feat: soryu-co/soryu - makima: Add contract interaction panel with comment and interrupt

* feat: soryu-co/soryu - makima: Build expandable contract log feed in StepsDiagram

* feat: soryu-co/soryu - makima: Rename tasks to contracts throughout document UI and add contract block support

* feat: soryu-co/soryu - makima: Add comment and interrupt controls to expanded step log feed

* feat: soryu-co/soryu - makima: Audit and fix Document UI feature flag visibility and missing implementations

* feat: soryu-co/soryu - makima: Add expandable step rows with live log feed in StepsDiagram

* WIP: heartbeat checkpoint

* feat: soryu-co/soryu - makima: Integrate all document UI components and final polish

1 files changed, 31 insertions, 3 deletions

diff --git a/frontend/src/services/directiveApi.ts b/frontend/src/services/directiveApi.ts
index b82f594..4d1fd82 100644
--- a/frontend/src/services/directiveApi.ts
+++ b/frontend/src/services/directiveApi.ts
@@ -35,8 +35,9 @@ export interface DirectiveStep {
   taskPlan: string
   dependsOn: string[]
   status: string
-  taskId: string
   contractId: string
+  /** @deprecated Use contractId instead */
+  taskId: string
   orderIndex: number
   sort_order?: number
   completedAt: string
@@ -124,13 +125,40 @@ export async function pauseDirective(id: string): Promise<DirectiveWithSteps> {
 }
 
 export async function getUserSetting(key: string): Promise<any> {
-  const response = await apiFetch(`/api/v1/settings/${key}`)
+  const response = await apiFetch(`/api/v1/user-settings/${key}`)
   return response.json()
 }
 
 export async function upsertUserSetting(key: string, value: any): Promise<void> {
-  await apiFetch('/api/v1/settings', {
+  await apiFetch('/api/v1/user-settings', {
     method: 'PUT',
     body: JSON.stringify({ key, value }),
   })
 }
+
+// ---- Task control APIs ----
+
+export async function sendTaskMessage(taskId: string, message: string): Promise<void> {
+  await apiFetch(`/api/v1/mesh/tasks/${taskId}/message`, {
+    method: 'POST',
+    body: JSON.stringify({ message }),
+  })
+}
+
+export async function stopTask(taskId: string): Promise<void> {
+  await apiFetch(`/api/v1/mesh/tasks/${taskId}/stop`, {
+    method: 'POST',
+  })
+}
+
+export async function continueTask(taskId: string): Promise<void> {
+  await apiFetch(`/api/v1/mesh/tasks/${taskId}/continue`, {
+    method: 'POST',
+  })
+}
+
+export async function startTask(taskId: string): Promise<void> {
+  await apiFetch(`/api/v1/mesh/tasks/${taskId}/start`, {
+    method: 'POST',
+  })
+}