v0.5.0: Binary-Free Mode - No OpenCode binary required

✨ Major Features:
- Native session management without OpenCode binary
- Provider routing: OpenCode Zen (free), Qwen OAuth, Z.AI
- Streaming chat with tool execution loop
- Mode detection API (/api/meta/mode)
- MCP integration fix (resolved infinite loading)
- NomadArch Native option in UI with comparison info

🆓 Free Models (No API Key):
- GPT-5 Nano (400K context)
- Grok Code Fast 1 (256K context)
- GLM-4.7 (205K context)
- Doubao Seed Code (256K context)
- Big Pickle (200K context)

📦 New Files:
- session-store.ts: Native session persistence
- native-sessions.ts: REST API for sessions
- lite-mode.ts: UI mode detection client
- native-sessions.ts (UI): SolidJS store

🔧 Updated:
- All installers: Optional binary download
- All launchers: Mode detection display
- Binary selector: Added NomadArch Native option
- README: Binary-Free Mode documentation

manual_test_guide.md

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+# MultiX v2 - Verification & User Guide
+
+**Date:** 2025-12-25
+**Version:** 2.0.0 (Gold Master)
+
+---
+
+## 1. Feature Verification Guide
+
+### A. Core Multi-Tasking & Parallel Execution
+*   **Goal:** Verify you can run multiple agents at once without freezing.
+*   **Steps:**
+    1.  Create **Task 1**. Type "Write a long story about space" and hit Launch.
+    2.  *While Task 1 is streaming*, click the **+** button to create **Task 2**.
+    3.  Type "Write a python script for fibonacci" in Task 2 and hit Launch.
+    4.  **Result:** Both tasks should stream simultaneously. Switching tabs should be instant.
+
+### B. Per-Task Isolation (Agents & Models)
+*   **Goal:** Verify each task retains its own settings.
+*   **Steps:**
+    1.  Go to **Task 1**. Select Agent: **"Software Engineer"** and Model: **"minimax-m2"**.
+    2.  Go to **Task 2**. Select Agent: **"Writer"** and Model: **"deepseek-chat"**.
+    3.  Switch back and forth.
+    4.  **Result:** The selectors should update to reflect the saved state for each task.
+
+### C. AI Agent Generator (NEW)
+*   **Goal:** Create a custom agent using AI.
+*   **Steps:**
+    1.  Open the **Agent Selector** dropdown.
+    2.  Click **"✨ AI Agent Generator"**.
+    3.  Type: *"A rust expert who is sarcastic and funny"*.
+    4.  Click **"Generate Agent"**.
+    5.  Review the generated name, description, and system prompt.
+    6.  Click **"Save & Use Agent"**.
+    7.  **Result:** The new agent is saved and immediately selected.
+
+### D. Prompt Enhancer
+*   **Goal:** strict Opus 4.5 prompt optimization.
+*   **Steps:**
+    1.  Type a simple prompt: *"fix bug"*.
+    2.  Click the **Magic Wand (✨)** button in the input area.
+    3.  **Result:** The prompt is expanded into a professional, structured request using the active model.
+
+### E. Compaction System
+*   **Goal:** Manage context window usage.
+*   **Steps:**
+    1.  In a long chat, look for the **"Compact suggested"** banner at the top of the chat list.
+    2.  Click **"Compact"** in the banner or the header bar.
+    3.  **Result:** The session history is summarized, freeing up tokens while keeping context.
+
+---
+
+## 2. Menu & Wiring Check
+
+| Button | Wired Action | Status |
+|--------|--------------|--------|
+| **MULTIX Badge** | Visual Indicator | ✅ Active |
+| **SKILLS** | Opens Sidebar (Events) | ✅ Wired |
+| **Active Task** | Shows current task name | ✅ Wired |
+| **Pipeline Tab** | Switches to Dashboard | ✅ Wired |
+| **Task Tabs** | Switch/Close Tasks | ✅ Wired |
+| **Compact Btn** | Triggers Compaction | ✅ Wired |
+| **API Key Btn** | Opens Settings Modal | ✅ Wired |
+| **Agent Select** | Updates Task Session | ✅ Wired |
+| **Model Select** | Updates Task Session | ✅ Wired |
+
+---
+
+## 3. Technical Status
+
+*   **Build:** Passing (No TypeScript errors).
+*   **Dev Server:** Running on port 3001.
+*   **Architecture:** Polling-based (150ms sync) to prevent UI thread blocking.
+*   **State:** Local signals + Non-reactive store references.
+
+**Ready for deployment.**