Release v1.0.0: Hybrid AI Architecture, Modern UI Overhaul, and Performance Optimizations

# 🚀 Major Features: Hybrid AI Architecture
- **Dual-Brain System**: Implemented "Primary Brain" (GPT-4o/Gemini) for complex reasoning and "Acceleration Layer" (Groq/Llama-3) for fast tool execution.
- **Model Allowlist**: Integrated `MODEL_OPTIONS` in `config.py` with tiered selection (Efficiency vs. Flagship).
- **Fast Mode**: Added toggle to offload heavy tasks (Scout/Navigator) to Groq/Llama-3-70B, reducing costs and latency.

# 🎨 UI/UX: Modern Redesign & Workflow
- **Settings Modal Revamp**:
- Redesigned with a "Purple/Gradient" theme for a professional look.
- Split configuration into "Services", "Primary Brain", and "Acceleration" tabs.
- Implemented **Passive Validation**: API keys are validated instantly on blur (Zero-cost check).
- Dynamic visibility: Automatically hides redundant keys based on provider selection.
- **Dashboard Layout**:
- Vertical control bar in the header for better space utilization.
- Repositioned "Stop & Back" button to the right column for better accessibility.
- Enforced white-card styling (`live-report-wrapper`) for Full Reports in Step 3

services/validator.py

@@ -0,0 +1,73 @@
+# services/validator.py
+import googlemaps
+import requests
+from google import genai
+from openai import OpenAI
+
+
+class APIValidator:
+
+    # 1. Google Maps (ID Only = Free)
+    @staticmethod
+    def test_google_maps(api_key: str) -> str:
+        if not api_key: return "⚠️ Please enter a key first."
+        try:
+            gmaps = googlemaps.Client(key=api_key)
+            # 使用 Taipei 101 ID 測試，只請求 ID 欄位 = 免費 Essentials SKU
+            gmaps.place(place_id='ChIJH56c2rarQjQRphD9gvC8BhI', fields=['place_id'])
+            return "✅ Google Maps Key is Valid!"
+        except Exception as e:
+            err = str(e)
+            if "REQUEST_DENIED" in err: return "❌ Invalid Key"
+            return f"❌ Error: {err.split(':')[0]}"
+
+    # 2. OpenWeather (原本就是 call API 才會驗證，無法避開，但極便宜)
+    @staticmethod
+    def test_openweather(api_key: str) -> str:
+        if not api_key: return "⚠️ Please enter a key first."
+        try:
+            # 隨便查個座標
+            url = f"https://api.openweathermap.org/data/2.5/weather?lat=25&lon=121&appid={api_key}"
+            resp = requests.get(url, timeout=5)
+            if resp.status_code == 200: return "✅ OpenWeather Key is Valid!"
+            if resp.status_code == 401: return "❌ Invalid Key"
+            return f"❌ Error: {resp.status_code}"
+        except:
+            return "❌ Connection Failed"
+
+    # 3. LLM (List Models = Free)
+    @staticmethod
+    def test_llm(provider: str, api_key: str, model_id: str = None) -> str:
+        if not api_key: return "⚠️ Please enter a key first."
+
+        try:
+            if provider == "Gemini":
+                # Google GenAI: 列出模型是免費的管理操作
+                client = genai.Client(api_key=api_key)
+                # 試著抓取第一個模型就好，不用全部列出來
+                client.models.list()
+                return "✅ Gemini Key is Valid!"
+
+            elif provider == "OpenAI":
+                # OpenAI: 列出模型是免費的
+                client = OpenAI(api_key=api_key)
+                client.models.list()
+                return "✅ OpenAI Key is Valid!"
+
+            elif provider == "Groq":
+                # Groq: 相容 OpenAI 介面，列出模型也是免費的
+                client = OpenAI(
+                    api_key=api_key,
+                    base_url="https://api.groq.com/openai/v1"
+                )
+                client.models.list()
+                return "✅ Groq Key is Valid!"
+
+            else:
+                return "⚠️ Unknown Provider"
+
+        except Exception as e:
+            err = str(e).lower()
+            if "401" in err or "invalid_api_key" in err: return "❌ Invalid Key"
+            if "429" in err: return "❌ Rate Limit Exceeded"  # 雖然免費，但如果按太快還是會擋
+            return f"❌ Error: {str(e)[:20]}..."