refactor(aisidebar): restructure project and implement reasoning mode toggle

- Reorganize project structure and file locations
- Add ReasoningController to manage model selection and reasoning mode
- Update design and requirements for reasoning mode toggle
- Implement model switching between Qwen3-4B-Instruct and Qwen3-4B-Thinking models
- Remove deprecated files and consolidate project layout
- Add new steering and specification documentation
- Clean up and remove unnecessary files and directories
- Prepare for enhanced AI sidebar functionality with more flexible model handling

data/conversations/archive_20251026_074254_7e273f2b.json

@@ -0,0 +1,83 @@
+{
+  "id": "archive_20251026_074254_7e273f2b",
+  "title": "",
+  "created_at": "2025-10-26T07:35:17.692597+00:00",
+  "updated_at": "2025-10-26T07:42:49.146793+00:00",
+  "messages": [
+    {
+      "role": "assistant",
+      "content": "New conversation started. Previous conversation archived.",
+      "timestamp": "2025-10-26T07:35:17.695093+00:00"
+    },
+    {
+      "role": "user",
+      "content": "Hello",
+      "timestamp": "2025-10-26T07:35:21.460195+00:00"
+    },
+    {
+      "role": "assistant",
+      "content": "Hello! How can I assist you today? 😊",
+      "timestamp": "2025-10-26T07:35:25.515467+00:00"
+    },
+    {
+      "role": "user",
+      "content": "Ask a questionHello",
+      "timestamp": "2025-10-26T07:35:30.996436+00:00"
+    },
+    {
+      "role": "assistant",
+      "content": "What's something you'd like to learn about today? 😊",
+      "timestamp": "2025-10-26T07:35:47.215863+00:00"
+    },
+    {
+      "role": "user",
+      "content": "about python",
+      "timestamp": "2025-10-26T07:35:53.243737+00:00"
+    },
+    {
+      "role": "assistant",
+      "content": "Great! Python is a super popular programming language that's easy to learn and super versatile. 😊  \n\n**Here's a quick question to help me tailor my answer:**  \n> *What aspect of Python are you curious about?*  \n*(For example: beginner basics, web development, data science, AI, automation, or something else?)*  \n\nJust tell me what interests you, and I’ll give you a clear, friendly explanation! 🐍",
+      "timestamp": "2025-10-26T07:36:02.475419+00:00"
+    },
+    {
+      "role": "user",
+      "content": "test",
+      "timestamp": "2025-10-26T07:36:07.763701+00:00"
+    },
+    {
+      "role": "assistant",
+      "content": "Hmm, \"test\" is a great start! 😊  \n\nSince you said \"test,\" here are a few possible directions we could go — just pick what interests you most:\n\n1. **Python Testing (like unit testing)** – How to write tests for your code using `unittest` or `pytest`.  \n2. **Python Test Environment** – How to set up a testing environment or run scripts.  \n3. **Test a Python Script** – Want to see a simple example of running a test?  \n4. **\"Test\" as in Python's `test` module** – Like how Python handles testing internally.  \n\nOr maybe you just meant \"test\" as in \"try it out\"?  \n\n👉 Could you clarify what you're really asking about? I'm here to help! 🚀",
+      "timestamp": "2025-10-26T07:36:12.983291+00:00"
+    },
+    {
+      "role": "user",
+      "content": "Think please",
+      "timestamp": "2025-10-26T07:36:18.387358+00:00"
+    },
+    {
+      "role": "assistant",
+      "content": "Got it! 😄 I'll *think through* something practical for you based on your \"test\" interest and keep it super simple.  \n\n**Here’s what I’ll do:**  \nI’ll write a **one-liner Python test** you can run *right now* in your terminal (no setup needed). It’s the simplest test possible — and it’ll prove I’m thinking!  \n\n```python\nprint(\"Hello, I’m thinking for you!\")  # 👀 This is a test!\n```\n\n**Run it** in your terminal:  \n```bash\npython -c \"print('Hello, I’m thinking for you!')\"\n```\n\n✅ **Why this works**:  \n- It’s a *real* test (it checks if the code runs without errors).  \n- It’s *instant* (no dependencies, no installation).  \n- It’s *fun* (it literally says \"I’m thinking for you!\").  \n\nYou’re welcome! 🐍✨  \nWhat would you like to try next? 😊",
+      "timestamp": "2025-10-26T07:36:33.374805+00:00"
+    },
+    {
+      "role": "user",
+      "content": "hello",
+      "timestamp": "2025-10-26T07:38:30.307131+00:00"
+    },
+    {
+      "role": "assistant",
+      "content": "Hello again! 😊 It’s great to see you back.  \n\nI’m here to help with **any** Python question—whether it’s a quick example, a concept you’re confused about, or just something fun to try.  \n\nWhat’s on your mind today? 🐍✨  \n\n*(P.S. You can even say \"test\" again if you want to run another tiny Python experiment!)*",
+      "timestamp": "2025-10-26T07:38:38.807487+00:00"
+    },
+    {
+      "role": "user",
+      "content": "Hello",
+      "timestamp": "2025-10-26T07:42:41.121466+00:00"
+    },
+    {
+      "role": "assistant",
+      "content": "Hello! 🌟 Just a little hello to brighten your day. 😊  \n\nWhat would you like to explore or try today? (Python, a fun fact, a quick code snippet, or just a chat?) I'm all ears! 💬",
+      "timestamp": "2025-10-26T07:42:49.146793+00:00"
+    }
+  ]
+}