feat: Approvals Inbox, one cross-session queue for prompts waiting on a human

Permission dialogs, AskUserQuestion questions and idle prompts from every
session now land in a server-side inbox (web/approval-inbox.ts, one item per
session, claude-mode only) and are answerable in place: a header bell + drawer
on desktop, inline answer strips on the phone overview's NEEDS YOU rows, and
working push Approve/Deny buttons (previously dead ends, now answered straight
from sw.js with no tab open). Pending alerts survive reloads because the
frontend seeds from GET /api/approvals on init.

Answering sends the digit / Esc / prompt text through the existing tmux input
path; option digits are accepted only when they match options parsed from the
captured pane frame, and the answer path re-captures the pane first so a
dialog that already left the screen refuses with 409 instead of typing into
the composer. New elicitation_complete / elicitation_response hook matchers
resolve question items the moment they are answered in the terminal;
refreshStaleCodemanHooks heals existing cases.

Verified end-to-end against a live claude session: a real AskUserQuestion
dialog parsed into 5 option buttons and was answered from the drawer.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/web/sse-events.ts

@@ -5,7 +5,7 @@
  * and referenced by the frontend (`SSE_EVENTS` in `constants.js`).
  * Both files MUST be kept in sync.
  *
- * 149 event constants organized by category:
+ * 154 event constants organized by category:
  * - **Core** (1): init
  * - **Session lifecycle** (23): created, updated, deleted, terminal, idle, working, ...
  * - **Session: Ralph** (6): ralphLoopUpdate, todoUpdate, completionDetected, ...
@@ -24,7 +24,8 @@
  * - **Plan orchestration** (5): started, progress, subagent, completed, cancelled
  * - **Tunnel** (7): started, stopped, progress, error, qrRotated, qrRegenerated, qrAuthUsed
  * - **Image / attachments** (2): image:detected, attachment:detected
- * - **Hooks** (6): idle_prompt, permission_prompt, elicitation_dialog, stop, teammate_idle, task_completed
+ * - **Hooks** (8): idle_prompt, permission_prompt, elicitation_dialog, elicitation_complete, elicitation_response, stop, teammate_idle, task_completed
+ * - **Approvals** (3): pending, updated, resolved (cross-session Approvals Inbox)
  * - **Orchestrator** (12): stateChanged, planProgress, planReady, phase*, verification, task*, completed, error
  * - **Clipboard** (1): write
  * - **Cases** (4): created, linked, deleted, order-changed
@@ -336,6 +337,10 @@ export const HookIdlePrompt = 'hook:idle_prompt' as const;
 export const HookPermissionPrompt = 'hook:permission_prompt' as const;
 /** Claude Code hook: elicitation dialog (Claude asking a question). */
 export const HookElicitationDialog = 'hook:elicitation_dialog' as const;
+/** Claude Code hook: elicitation dialog closed (question answered in the terminal). */
+export const HookElicitationComplete = 'hook:elicitation_complete' as const;
+/** Claude Code hook: elicitation answer submitted. */
+export const HookElicitationResponse = 'hook:elicitation_response' as const;
 /** Claude Code hook: response complete. */
 export const HookStop = 'hook:stop' as const;
 /** Claude Code hook: teammate went idle. */
@@ -343,6 +348,15 @@ export const HookTeammateIdle = 'hook:teammate_idle' as const;
 /** Claude Code hook: teammate task completed. */
 export const HookTaskCompleted = 'hook:task_completed' as const;
 
+// ─── Approvals Inbox ─────────────────────────────────────────────────────────
+
+/** A prompt is waiting on a human (permission dialog, question, idle prompt). */
+export const ApprovalPending = 'approval:pending' as const;
+/** A pending approval's captured context/options were refreshed. */
+export const ApprovalUpdated = 'approval:updated' as const;
+/** A pending approval left the inbox (answered, superseded, expired, ...). */
+export const ApprovalResolved = 'approval:resolved' as const;
+
 // ─── Orchestrator ────────────────────────────────────────────────────────────
 
 /** Orchestrator state machine transitioned. */
@@ -580,10 +594,17 @@ export const SseEvent = {
   HookIdlePrompt,
   HookPermissionPrompt,
   HookElicitationDialog,
+  HookElicitationComplete,
+  HookElicitationResponse,
   HookStop,
   HookTeammateIdle,
   HookTaskCompleted,
 
+  // Approvals Inbox
+  ApprovalPending,
+  ApprovalUpdated,
+  ApprovalResolved,
+
   // Orchestrator
   OrchestratorStateChanged,
   OrchestratorPlanProgress,