chore: add rule 56 — Electrobun launch sequence (PTY + Vite before app)

.claude/rules/56-electrobun-launch.md

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+# Electrobun Launch Sequence (MANDATORY)
+
+Before launching the Electrobun app, ALWAYS start dependencies in this exact order:
+
+## Steps
+
+1. **Start Rust PTY daemon** (if not already running):
+   ```bash
+   /home/hibryda/code/ai/agent-orchestrator/agor-pty/target/release/agor-ptyd &>/dev/null &
+   ```
+
+2. **Start Vite dev server** on port 9760:
+   ```bash
+   cd /home/hibryda/code/ai/agent-orchestrator/ui-electrobun && npx vite dev --port 9760 --host localhost &>/dev/null &
+   ```
+
+3. **Wait 3-4 seconds** for Vite to be ready.
+
+4. **Launch Electrobun**:
+   ```bash
+   cd /home/hibryda/code/ai/agent-orchestrator/ui-electrobun && npx electrobun dev
+   ```
+
+## What Happens If You Skip Steps
+
+- **No PTY daemon**: App crashes with `Connection timeout (5s). Is agor-ptyd running?` — Bun process dies silently.
+- **No Vite**: WebView loads a blank page (no frontend bundle served).
+- **No wait**: Electrobun opens before Vite is ready — blank page or partial load.
+
+## Kill Sequence (Rule 55)
+
+Always kill previous instances before launching new ones:
+```bash
+pkill -f "electrobun|vite.*9760|agor-ptyd|WebKit|AgentOrch|launcher" 2>/dev/null
+fuser -k 9760/tcp 2>/dev/null
+```
+
+## Rules
+
+- NEVER launch Electrobun without the PTY daemon running.
+- NEVER launch Electrobun without Vite running on port 9760.
+- ALWAYS kill previous instances first (Rule 55).
+- Check `pgrep -f agor-ptyd` before launching to verify daemon is alive.