fix: subagent windows not opening — two cascading bugs

1. handleInit crash: commit cdc822d removed Map initializations for
   teammateTerminals, teammatePanesByName, teams, teamTasks, teammateMap
   from the constructor but left cleanup code that iterates them.
   cleanupAllFloatingWindows() crashed on "not iterable", preventing
   ALL frontend data (sessions, subagents) from loading.

2. claudeSessionId null on recovered sessions: only set inside
   startInteractive(), never in constructor or persisted. After server
   restart, recovered sessions had null claudeSessionId, so the
   hasMatchingTab check always failed → no subagent windows.

Fixes:
- Re-add all 5 missing Map initializations in app.js constructor
- Set _claudeSessionId = this.id in Session constructor (Claudeman
  always passes --session-id to Claude, so they always match)

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

src/respawn-controller.ts

@@ -1686,11 +1686,11 @@ export class RespawnController extends EventEmitter {
     this.stepTimer = this.startTrackedTimer(
       'step-delay',
       this.config.interStepDelayMs,
-      () => {
+      async () => {
         this.stepTimer = null;
         const prompt = this.config.kickstartPrompt!;
         this.logAction('command', `Sending kickstart: "${prompt.substring(0, 40)}..."`);
-        this.session.writeViaScreen(prompt + '\r');  // \r triggers key.return in Ink/Claude CLI
+        await this.session.writeViaScreen(prompt + '\r');  // \r triggers key.return in Ink/Claude CLI
         this.emit('stepSent', 'kickstart', prompt);
         this.setState('waiting_kickstart');
         this.promptDetected = false;
@@ -2451,7 +2451,7 @@ export class RespawnController extends EventEmitter {
 
     this.logAction('command', 'Auto-accept: ↵ Enter (plan approved)');
     this.emit('stepSent', 'auto-accept', '↵');
-    this.session.writeViaScreen('\r');
+    void this.session.writeViaScreen('\r');
     this.emit('autoAcceptSent');
     // Reset so we don't keep spamming Enter if Claude doesn't respond
     this.hasReceivedOutput = false;
@@ -2850,7 +2850,7 @@ export class RespawnController extends EventEmitter {
     this.stepTimer = this.startTrackedTimer(
       'step-delay',
       this.config.interStepDelayMs,
-      () => {
+      async () => {
         this.stepTimer = null;
 
         // Use RALPH_STATUS RECOMMENDATION if available, otherwise fall back to config
@@ -2865,7 +2865,7 @@ export class RespawnController extends EventEmitter {
 
         const input = updatePrompt + '\r';  // \r triggers Enter in Ink/Claude CLI
         this.logAction('command', `Sending: "${updatePrompt.substring(0, 50)}..."`);
-        this.session.writeViaScreen(input);
+        await this.session.writeViaScreen(input);
         this.emit('stepSent', 'update', updatePrompt);
         this.setState('waiting_update');
         this.promptDetected = false;
@@ -2889,10 +2889,10 @@ export class RespawnController extends EventEmitter {
     this.stepTimer = this.startTrackedTimer(
       'step-delay',
       this.config.interStepDelayMs,
-      () => {
+      async () => {
         this.stepTimer = null;
         this.logAction('command', 'Sending: /clear');
-        this.session.writeViaScreen('/clear\r');  // \r triggers Enter in Ink/Claude CLI
+        await this.session.writeViaScreen('/clear\r');  // \r triggers Enter in Ink/Claude CLI
         this.emit('stepSent', 'clear', '/clear');
         this.setState('waiting_clear');
         this.promptDetected = false;
@@ -2932,10 +2932,10 @@ export class RespawnController extends EventEmitter {
     this.stepTimer = this.startTrackedTimer(
       'step-delay',
       this.config.interStepDelayMs,
-      () => {
+      async () => {
         this.stepTimer = null;
         this.logAction('command', 'Sending: /init');
-        this.session.writeViaScreen('/init\r');  // \r triggers Enter in Ink/Claude CLI
+        await this.session.writeViaScreen('/init\r');  // \r triggers Enter in Ink/Claude CLI
         this.emit('stepSent', 'init', '/init');
         this.setState('waiting_init');
         this.promptDetected = false;