diff --git a/app/api/v1/ai_proxy.py b/app/api/v1/ai_proxy.py
new file mode 100644
index 0000000..eda81ca
--- /dev/null
+++ b/app/api/v1/ai_proxy.py
@@ -0,0 +1,40 @@
+import httpx
+from fastapi import APIRouter, HTTPException
+from pydantic import BaseModel
+from typing import Optional, Any, Dict, List
+
+router = APIRouter()
+
+class ProxyRequest(BaseModel):
+    url: str
+    headers: Dict[str, str] = {}
+    body: Dict[str, Any] = {}
+
+import json
+
+@router.post("/proxy")
+async def proxy_llm(req: ProxyRequest):
+    try:
+        async with httpx.AsyncClient(timeout=60.0) as client:
+            resp = await client.post(
+                req.url,
+                headers={k: v for k, v in req.headers.items() if k.lower() not in ('host', 'origin', 'referer')},
+                json=req.body
+            )
+            raw = resp.text
+            try:
+                return resp.json()
+            except json.JSONDecodeError:
+                try:
+                    return json.loads(raw[:raw.find('\n')])
+                except (json.JSONDecodeError, ValueError):
+                    return {"content": raw}
+    except httpx.TimeoutException:
+        raise HTTPException(status_code=504, detail="AI provider timeout")
+    except httpx.ConnectError as e:
+        msg = f"Cannot connect to AI provider: {e}"
+        if 'localhost' in req.url or '127.0.0.1' in req.url:
+            msg += "\nNếu app chạy trong Docker, localhost trỏ vào container, không ra host.\nHãy thay localhost bằng host.docker.internal hoặc IP bridge Docker (172.17.0.1)."
+        raise HTTPException(status_code=502, detail=msg)
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))
diff --git a/app/main.py b/app/main.py
index d6342a7..53e2904 100644
--- a/app/main.py
+++ b/app/main.py
@@ -11,6 +11,7 @@ from app.api.v1.auth import router as auth_router
 from app.api.v1.admin import router as admin_router
 from app.api.v1.projects import router as projects_router
 from app.api.v1.user_config import router as user_config_router
+from app.api.v1.ai_proxy import router as ai_proxy_router
 from app.core.auth import seed_admin
 
 # Ensure storage directories exist
@@ -45,6 +46,7 @@ app.include_router(auth_router, prefix="/api/v1/auth", tags=["auth"])
 app.include_router(admin_router, prefix="/api/v1/admin", tags=["admin"])
 app.include_router(projects_router, prefix="/api/v1/projects", tags=["projects"])
 app.include_router(user_config_router, prefix="/api/v1/user", tags=["user_config"])
+app.include_router(ai_proxy_router, prefix="/api/v1/ai", tags=["ai"])
 
 # Seed admin user on startup
 @app.on_event("startup")
diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx
index 922510a..9995668 100644
--- a/app/static/js/app.jsx
+++ b/app/static/js/app.jsx
@@ -2481,7 +2481,8 @@ const AuthModal = ({
 };
 const AIConfigModal = ({
   isOpen,
-  onClose
+  onClose,
+  onConfigSaved
 }) => {
   if (!isOpen) return null;
   const defaultProvidersList = [{
@@ -2552,6 +2553,7 @@ const AIConfigModal = ({
     try {
       const res = await window.SonicAPI.saveAIConfigs(providers);
       setMsg(res.message || 'Đã lưu cấu hình AI Providers thành công!');
+      if (onConfigSaved) onConfigSaved(providers);
     } catch (err) {
       setError(err.message || 'Lỗi khi lưu cấu hình AI');
     } finally {
@@ -2594,7 +2596,38 @@ const AIConfigModal = ({
     className: "truncate"
   }, p.name), p.is_active && /*#__PURE__*/React.createElement("span", {
     className: "w-2 h-2 rounded-full bg-emerald-400"
-  })))), activeProvider && /*#__PURE__*/React.createElement("form", {
+  }))), /*#__PURE__*/React.createElement("div", {
+    className: "flex gap-1 mt-2"
+  }, /*#__PURE__*/React.createElement("button", {
+    onClick: e => {
+      e.stopPropagation();
+      const newId = 'provider_' + Date.now();
+      setProviders(prev => [...prev, {
+        id: newId,
+        name: 'New Provider',
+        provider_type: 'openai_compatible',
+        api_base_url: 'https://api.openai.com/v1',
+        api_key: '',
+        model_name: 'gpt-4o-mini',
+        temperature: 0.7,
+        is_active: false
+      }]);
+      setSelectedId(newId);
+    },
+    className: "flex-1 px-2 py-1 bg-emerald-700 hover:bg-emerald-600 text-white text-xs font-bold rounded"
+  }, "+ Thêm"), providers.length > 1 && /*#__PURE__*/React.createElement("button", {
+    onClick: e => {
+      e.stopPropagation();
+      if (confirm(`Xóa provider "${providers.find(p => p.id === selectedId)?.name}"?`)) {
+        setProviders(prev => {
+          const filtered = prev.filter(p => p.id !== selectedId);
+          if (filtered.length > 0) setSelectedId(filtered[0].id);
+          return filtered;
+        });
+      }
+    },
+    className: "px-2 py-1 bg-red-800 hover:bg-red-700 text-white text-xs font-bold rounded"
+  }, "Xóa"))), activeProvider && /*#__PURE__*/React.createElement("form", {
     onSubmit: handleSave,
     className: "col-span-2 space-y-3.5"
   }, /*#__PURE__*/React.createElement("div", null, /*#__PURE__*/React.createElement("label", {
@@ -3004,6 +3037,19 @@ const App = () => {
     apiKey: localStorage.getItem('ai_api_key') || '',
     model: localStorage.getItem('ai_model') || 'deepseek-chat'
   });
+  const [aiProviders, setAiProviders] = useState([]);
+  useEffect(() => {
+    (async () => {
+      try {
+        const data = await window.SonicAPI.getAIConfigs();
+        if (data && data.providers) {
+          setAiProviders(data.providers);
+          const active = data.providers.find(p => p.is_active) || data.providers[0];
+          if (active) setSelectedProviderId(active.id);
+        }
+      } catch (e) { /* server may not have config endpoint */ }
+    })();
+  }, []);
   const [analysisState, setAnalysisState] = useState({
     status: 'Sẵn sàng. Chạy AI để phân tích nhịp.',
     data: null,
@@ -3014,6 +3060,7 @@ const App = () => {
   const [aiModel, setAiModel] = useState('GPT-4o');
   const [aiActionLog, setAiActionLog] = useState([]);
   const [aiProcessing, setAiProcessing] = useState(false);
+  const [selectedProviderId, setSelectedProviderId] = useState('');
   const [exportSettings, setExportSettings] = useState({
     sampleRate: '44100',
     bitDepth: '16',
@@ -3348,7 +3395,7 @@ const App = () => {
     const sidebarEl = document.getElementById('right-sidebar');
     const sidebarHeight = sidebarEl ? sidebarEl.getBoundingClientRect().height : 400;
     const onMove = ev => {
-      const deltaY = ev.clientY - startY;
+      const deltaY = startY - ev.clientY;
       const pct = ((startHeight / 100 * sidebarHeight + deltaY) / sidebarHeight) * 100;
       const newPct = Math.max(20, Math.min(80, pct));
       setMediaExplorerHeight(newPct);
@@ -6922,6 +6969,58 @@ const App = () => {
     }, 800);
   };
 
+  // ── AI Prompt Send to Active Provider ──
+  const handleAISend = async () => {
+    const prompt = aiPrompt.trim();
+    if (!prompt) { showToast('Vui lòng nhập nội dung prompt.', 'warning'); return; }
+    setAiProcessing(true);
+    setAiActionLog(prev => [...prev, { type: 'status', text: ` ⏳ Đang gửi prompt đến AI...`, time: Date.now() }]);
+    try {
+      const selectedProvider = aiProviders.find(p => p.id === selectedProviderId) || (aiProviders.length > 0 ? aiProviders[0] : null);
+      const provider = selectedProvider || aiConfig;
+      const baseUrl = provider.api_base_url || provider.baseUrl || `${API_BASE_URL}`;
+      const apiKey = provider.api_key || provider.apiKey || '';
+      const model = provider.model_name || provider.model || 'deepseek-chat';
+      const dawContext = window.AIGateway.buildAIPromptContext({
+        tracks, bpm, selectedTrackId, currentTime, selLeft, selRight
+      });
+      const result = await window.AIGateway.executeAIPrompt({
+        prompt,
+        provider: provider.name || 'default',
+        model,
+        apiKey,
+        baseUrl: baseUrl.replace(/\/chat\/completions$/, '').replace(/\/$/, ''),
+        dawContext,
+        tools: window.AIGateway.DEFAULT_TOOLS
+      });
+      if (result.textResponse) {
+        setAiActionLog(prev => [...prev, { type: 'status', text: ` AI: ${result.textResponse}`, time: Date.now() }]);
+      }
+      if (result.functionCalls && result.functionCalls.length > 0) {
+        for (const fc of result.functionCalls) {
+          setAiActionLog(prev => [...prev, { type: 'info', text: ` Gọi lệnh: ${fc.name}(${JSON.stringify(fc.arguments)})`, time: Date.now() }]);
+          const cmdName = fc.name.toUpperCase();
+          if (window.DAWCommandDispatcher) {
+            try {
+              const cmdResult = window.DAWCommandDispatcher.execute(cmdName, fc.arguments);
+              setAiActionLog(prev => [...prev, { type: 'status', text: ` ✅ ${fc.name}: ${cmdResult.success ? 'thành công' : 'thất bại'}`, time: Date.now() }]);
+            } catch (cmdErr) {
+              setAiActionLog(prev => [...prev, { type: 'error', text: ` ❌ ${fc.name}: ${cmdErr.message}`, time: Date.now() }]);
+            }
+          }
+        }
+      }
+      setAiActionLog(prev => [...prev, { type: 'status', text: ` Hoàn tất.`, time: Date.now() }]);
+      setAiPrompt('');
+      setTimeout(() => lucide.createIcons(), 200);
+    } catch (err) {
+      setAiActionLog(prev => [...prev, { type: 'error', text: ` Lỗi: ${err.message}`, time: Date.now() }]);
+      showToast(`AI Error: ${err.message}`, 'error');
+    } finally {
+      setAiProcessing(false);
+    }
+  };
+
   // ── Split Track at Playhead ──
   const handleSplitTrackAtTime = (trackId, clipId, time) => {
     const track = tracks.find(t => t.id === trackId);
@@ -8087,42 +8186,22 @@ const App = () => {
         "data-lucide": "x",
         className: "w-3 h-3"
       }))))), /*#__PURE__*/React.createElement("div", {
-        className: "p-1.5 bg-[#141414] rounded border border-zinc-800 text-xs font-mono min-h-[20px]"
-      }, /*#__PURE__*/React.createElement("div", {
-        className: "text-zinc-500"
-      }, "// ", /*#__PURE__*/React.createElement("span", {
-        className: "text-zinc-300"
-      }, analysisState.status)), analysisState.data && /*#__PURE__*/React.createElement("div", {
-        className: "text-emerald-500 font-semibold"
-      }, "BPM: ", analysisState.data.bpm)), /*#__PURE__*/React.createElement("div", {
-        className: "grid grid-cols-3 gap-1"
-      }, /*#__PURE__*/React.createElement("button", {
-        onClick: handleAIScan,
-        className: "py-1 bg-purple-900 hover:bg-purple-800 text-purple-100 font-bold rounded text-xs border border-purple-700 flex items-center justify-center gap-1"
+        className: "flex items-center gap-1.5 shrink-0"
       }, /*#__PURE__*/React.createElement("span", {
         className: "inline-flex items-center shrink-0"
       }, /*#__PURE__*/React.createElement("i", {
-        "data-lucide": "map-pin",
-        className: "w-3 h-3"
-      })), " Scan"), /*#__PURE__*/React.createElement("button", {
-        onClick: handleAICutToNewTrack,
-        disabled: analysisState.isRunning,
-        className: "py-1 bg-fuchsia-800 hover:bg-fuchsia-700 text-white font-bold rounded text-xs border border-fuchsia-600 flex items-center justify-center gap-1"
-      }, /*#__PURE__*/React.createElement("span", {
-        className: "inline-flex items-center shrink-0"
-      }, /*#__PURE__*/React.createElement("i", {
-        "data-lucide": "scissors",
-        className: "w-3 h-3"
-      })), " Cut"), /*#__PURE__*/React.createElement("button", {
-        onClick: handleAIAnalysicLoop,
-        disabled: analysisState.isRunning,
-        className: "py-1 bg-violet-800 hover:bg-violet-700 text-violet-100 font-bold rounded text-xs border border-violet-600 flex items-center justify-center gap-1"
-      }, /*#__PURE__*/React.createElement("span", {
-        className: "inline-flex items-center shrink-0"
-      }, /*#__PURE__*/React.createElement("i", {
-        "data-lucide": "sparkles",
-        className: "w-3 h-3"
-      })), " Loop")), /*#__PURE__*/React.createElement("div", {
+        "data-lucide": "cpu",
+        className: "w-3 h-3 text-purple-400"
+      })), /*#__PURE__*/React.createElement("select", {
+        value: selectedProviderId,
+        onChange: e => setSelectedProviderId(e.target.value),
+        className: "flex-1 bg-[#141414] text-zinc-200 border border-zinc-700 rounded px-1 py-0.5 text-xs font-mono focus:outline-none focus:border-purple-600"
+      }, aiProviders.length === 0 ? /*#__PURE__*/React.createElement("option", {
+        value: ""
+      }, "Chưa có provider") : aiProviders.map(p => /*#__PURE__*/React.createElement("option", {
+        key: p.id,
+        value: p.id
+      }, p.name, p.is_active ? '' : ' (inactive)')))), /*#__PURE__*/React.createElement("div", {
         className: "border-t border-zinc-800 pt-1.5 mt-1"
       }, /*#__PURE__*/React.createElement("div", {
         className: "text-xs font-bold text-zinc-400 uppercase mb-1 flex items-center gap-1"
@@ -8138,15 +8217,15 @@ const App = () => {
         className: "w-full bg-[#1e1e1e] text-zinc-200 p-1.5 rounded border border-zinc-700 focus:outline-none focus:border-purple-600 font-mono text-xs resize-none",
         rows: 2,
         onKeyDown: e => {
-          if (e.key === 'Enter' && (e.ctrlKey || e.metaKey)) {
+          if (e.key === 'Enter' && !e.shiftKey) {
             e.preventDefault();
-            window.executeAIPrompt();
+            handleAISend();
           }
         }
       }), /*#__PURE__*/React.createElement("div", {
         className: "flex items-center gap-1 mt-1"
       }, /*#__PURE__*/React.createElement("button", {
-        onClick: () => window.executeAIPrompt(),
+        onClick: handleAISend,
         disabled: aiProcessing,
         className: "flex-1 py-1 bg-purple-700 hover:bg-purple-600 text-white font-bold rounded text-xs border border-purple-500 flex items-center justify-center gap-1"
       }, aiProcessing ? 'Đang suy luận...' : /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement("span", {
@@ -8162,10 +8241,10 @@ const App = () => {
         className: "px-2 py-1 bg-zinc-800 hover:bg-zinc-700 text-zinc-400 rounded text-xs border border-zinc-700"
       }, "Clear")), /*#__PURE__*/React.createElement("div", {
         className: "text-xs text-zinc-600 mt-0.5"
-      }, "Ctrl+Enter để gửi nhanh")), /*#__PURE__*/React.createElement("div", {
-        className: "border-t border-zinc-800 pt-1.5 mt-1"
+      }, "Enter để gửi nhanh")), /*#__PURE__*/React.createElement("div", {
+        className: "border-t border-zinc-800 pt-1.5 mt-1 flex-1 min-h-0 flex flex-col"
       }, /*#__PURE__*/React.createElement("div", {
-        className: "text-xs font-bold text-zinc-400 uppercase mb-1 flex items-center justify-between"
+        className: "text-xs font-bold text-zinc-400 uppercase mb-1 flex items-center justify-between shrink-0"
       }, /*#__PURE__*/React.createElement("span", {
         className: "inline-flex items-center gap-1"
       }, /*#__PURE__*/React.createElement("i", {
@@ -8186,9 +8265,9 @@ const App = () => {
         },
         className: "text-xs text-amber-400 hover:text-amber-300 border border-amber-800 rounded px-1 py-0.5"
       }, "Undo"))), /*#__PURE__*/React.createElement("div", {
-        className: "flex-1 overflow-y-auto no-scrollbar bg-[#0f0f0f] rounded border border-zinc-800 p-1 max-h-[120px]"
+        className: "flex-1 overflow-y-auto no-scrollbar bg-[#0f0f0f] rounded border border-zinc-800 p-1 select-text"
       }, aiActionLog.length === 0 ? /*#__PURE__*/React.createElement("div", {
-        className: "text-xs text-zinc-600 italic"
+        className: "text-xs text-zinc-600 italic select-text"
       }, "Chưa có hành động nào.") : aiActionLog.map((entry, i) => /*#__PURE__*/React.createElement("div", {
         key: i,
         className: `text-xs font-mono py-0.5 border-b border-zinc-900 last:border-0 ${entry.type === 'error' ? 'text-red-400' : entry.type === 'status' ? 'text-zinc-400 italic' : entry.type === 'undo' ? 'text-amber-400' : 'text-zinc-300'}`
@@ -9637,7 +9716,12 @@ const App = () => {
     onClose: () => setProfileModalOpen(false)
   }), /*#__PURE__*/React.createElement(AIConfigModal, {
     isOpen: aiConfigModalOpen,
-    onClose: () => setAiConfigModalOpen(false)
+    onClose: () => setAiConfigModalOpen(false),
+    onConfigSaved: (providers) => {
+      setAiProviders(providers);
+      const active = providers.find(p => p.is_active) || providers[0];
+      if (active) setSelectedProviderId(active.id);
+    }
   }), /*#__PURE__*/React.createElement(SystemManagerModal, {
     isOpen: systemManagerModalOpen,
     onClose: () => setSystemManagerModalOpen(false)
diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js
index a3a1905..f07f238 100644
--- a/app/static/js/app.precompiled.js
+++ b/app/static/js/app.precompiled.js
@@ -2481,7 +2481,8 @@ const AuthModal = ({
 };
 const AIConfigModal = ({
   isOpen,
-  onClose
+  onClose,
+  onConfigSaved
 }) => {
   if (!isOpen) return null;
   const defaultProvidersList = [{
@@ -2552,6 +2553,7 @@ const AIConfigModal = ({
     try {
       const res = await window.SonicAPI.saveAIConfigs(providers);
       setMsg(res.message || 'Đã lưu cấu hình AI Providers thành công!');
+      if (onConfigSaved) onConfigSaved(providers);
     } catch (err) {
       setError(err.message || 'Lỗi khi lưu cấu hình AI');
     } finally {
@@ -2594,7 +2596,38 @@ const AIConfigModal = ({
     className: "truncate"
   }, p.name), p.is_active && /*#__PURE__*/React.createElement("span", {
     className: "w-2 h-2 rounded-full bg-emerald-400"
-  })))), activeProvider && /*#__PURE__*/React.createElement("form", {
+  }))), /*#__PURE__*/React.createElement("div", {
+    className: "flex gap-1 mt-2"
+  }, /*#__PURE__*/React.createElement("button", {
+    onClick: e => {
+      e.stopPropagation();
+      const newId = 'provider_' + Date.now();
+      setProviders(prev => [...prev, {
+        id: newId,
+        name: 'New Provider',
+        provider_type: 'openai_compatible',
+        api_base_url: 'https://api.openai.com/v1',
+        api_key: '',
+        model_name: 'gpt-4o-mini',
+        temperature: 0.7,
+        is_active: false
+      }]);
+      setSelectedId(newId);
+    },
+    className: "flex-1 px-2 py-1 bg-emerald-700 hover:bg-emerald-600 text-white text-xs font-bold rounded"
+  }, "+ Thêm"), providers.length > 1 && /*#__PURE__*/React.createElement("button", {
+    onClick: e => {
+      e.stopPropagation();
+      if (confirm(`Xóa provider "${providers.find(p => p.id === selectedId)?.name}"?`)) {
+        setProviders(prev => {
+          const filtered = prev.filter(p => p.id !== selectedId);
+          if (filtered.length > 0) setSelectedId(filtered[0].id);
+          return filtered;
+        });
+      }
+    },
+    className: "px-2 py-1 bg-red-800 hover:bg-red-700 text-white text-xs font-bold rounded"
+  }, "Xóa"))), activeProvider && /*#__PURE__*/React.createElement("form", {
     onSubmit: handleSave,
     className: "col-span-2 space-y-3.5"
   }, /*#__PURE__*/React.createElement("div", null, /*#__PURE__*/React.createElement("label", {
@@ -3004,6 +3037,19 @@ const App = () => {
     apiKey: localStorage.getItem('ai_api_key') || '',
     model: localStorage.getItem('ai_model') || 'deepseek-chat'
   });
+  const [aiProviders, setAiProviders] = useState([]);
+  useEffect(() => {
+    (async () => {
+      try {
+        const data = await window.SonicAPI.getAIConfigs();
+        if (data && data.providers) {
+          setAiProviders(data.providers);
+          const active = data.providers.find(p => p.is_active) || data.providers[0];
+          if (active) setSelectedProviderId(active.id);
+        }
+      } catch (e) {/* server may not have config endpoint */}
+    })();
+  }, []);
   const [analysisState, setAnalysisState] = useState({
     status: 'Sẵn sàng. Chạy AI để phân tích nhịp.',
     data: null,
@@ -3014,6 +3060,7 @@ const App = () => {
   const [aiModel, setAiModel] = useState('GPT-4o');
   const [aiActionLog, setAiActionLog] = useState([]);
   const [aiProcessing, setAiProcessing] = useState(false);
+  const [selectedProviderId, setSelectedProviderId] = useState('');
   const [exportSettings, setExportSettings] = useState({
     sampleRate: '44100',
     bitDepth: '16',
@@ -3348,7 +3395,7 @@ const App = () => {
     const sidebarEl = document.getElementById('right-sidebar');
     const sidebarHeight = sidebarEl ? sidebarEl.getBoundingClientRect().height : 400;
     const onMove = ev => {
-      const deltaY = ev.clientY - startY;
+      const deltaY = startY - ev.clientY;
       const pct = (startHeight / 100 * sidebarHeight + deltaY) / sidebarHeight * 100;
       const newPct = Math.max(20, Math.min(80, pct));
       setMediaExplorerHeight(newPct);
@@ -6921,6 +6968,94 @@ const App = () => {
     }, 800);
   };
 
+  // ── AI Prompt Send to Active Provider ──
+  const handleAISend = async () => {
+    const prompt = aiPrompt.trim();
+    if (!prompt) {
+      showToast('Vui lòng nhập nội dung prompt.', 'warning');
+      return;
+    }
+    setAiProcessing(true);
+    setAiActionLog(prev => [...prev, {
+      type: 'status',
+      text: ` ⏳ Đang gửi prompt đến AI...`,
+      time: Date.now()
+    }]);
+    try {
+      const selectedProvider = aiProviders.find(p => p.id === selectedProviderId) || (aiProviders.length > 0 ? aiProviders[0] : null);
+      const provider = selectedProvider || aiConfig;
+      const baseUrl = provider.api_base_url || provider.baseUrl || `${API_BASE_URL}`;
+      const apiKey = provider.api_key || provider.apiKey || '';
+      const model = provider.model_name || provider.model || 'deepseek-chat';
+      const dawContext = window.AIGateway.buildAIPromptContext({
+        tracks,
+        bpm,
+        selectedTrackId,
+        currentTime,
+        selLeft,
+        selRight
+      });
+      const result = await window.AIGateway.executeAIPrompt({
+        prompt,
+        provider: provider.name || 'default',
+        model,
+        apiKey,
+        baseUrl: baseUrl.replace(/\/chat\/completions$/, '').replace(/\/$/, ''),
+        dawContext,
+        tools: window.AIGateway.DEFAULT_TOOLS
+      });
+      if (result.textResponse) {
+        setAiActionLog(prev => [...prev, {
+          type: 'status',
+          text: ` AI: ${result.textResponse}`,
+          time: Date.now()
+        }]);
+      }
+      if (result.functionCalls && result.functionCalls.length > 0) {
+        for (const fc of result.functionCalls) {
+          setAiActionLog(prev => [...prev, {
+            type: 'info',
+            text: ` Gọi lệnh: ${fc.name}(${JSON.stringify(fc.arguments)})`,
+            time: Date.now()
+          }]);
+          const cmdName = fc.name.toUpperCase();
+          if (window.DAWCommandDispatcher) {
+            try {
+              const cmdResult = window.DAWCommandDispatcher.execute(cmdName, fc.arguments);
+              setAiActionLog(prev => [...prev, {
+                type: 'status',
+                text: ` ✅ ${fc.name}: ${cmdResult.success ? 'thành công' : 'thất bại'}`,
+                time: Date.now()
+              }]);
+            } catch (cmdErr) {
+              setAiActionLog(prev => [...prev, {
+                type: 'error',
+                text: ` ❌ ${fc.name}: ${cmdErr.message}`,
+                time: Date.now()
+              }]);
+            }
+          }
+        }
+      }
+      setAiActionLog(prev => [...prev, {
+        type: 'status',
+        text: ` Hoàn tất.`,
+        time: Date.now()
+      }]);
+      setAiPrompt('');
+      setTimeout(() => lucide.createIcons(), 200);
+    } catch (err) {
+      setAiActionLog(prev => [...prev, {
+        type: 'error',
+        text: ` Lỗi: ${err.message}`,
+        time: Date.now()
+      }]);
+      showToast(`AI Error: ${err.message}`, 'error');
+    } finally {
+      setAiProcessing(false);
+    }
+  };
+
   // ── Split Track at Playhead ──
   const handleSplitTrackAtTime = (trackId, clipId, time) => {
     const track = tracks.find(t => t.id === trackId);
@@ -8174,42 +8309,22 @@ const App = () => {
         "data-lucide": "x",
         className: "w-3 h-3"
       }))))), /*#__PURE__*/React.createElement("div", {
-        className: "p-1.5 bg-[#141414] rounded border border-zinc-800 text-xs font-mono min-h-[20px]"
-      }, /*#__PURE__*/React.createElement("div", {
-        className: "text-zinc-500"
-      }, "// ", /*#__PURE__*/React.createElement("span", {
-        className: "text-zinc-300"
-      }, analysisState.status)), analysisState.data && /*#__PURE__*/React.createElement("div", {
-        className: "text-emerald-500 font-semibold"
-      }, "BPM: ", analysisState.data.bpm)), /*#__PURE__*/React.createElement("div", {
-        className: "grid grid-cols-3 gap-1"
-      }, /*#__PURE__*/React.createElement("button", {
-        onClick: handleAIScan,
-        className: "py-1 bg-purple-900 hover:bg-purple-800 text-purple-100 font-bold rounded text-xs border border-purple-700 flex items-center justify-center gap-1"
+        className: "flex items-center gap-1.5 shrink-0"
       }, /*#__PURE__*/React.createElement("span", {
         className: "inline-flex items-center shrink-0"
       }, /*#__PURE__*/React.createElement("i", {
-        "data-lucide": "map-pin",
-        className: "w-3 h-3"
-      })), " Scan"), /*#__PURE__*/React.createElement("button", {
-        onClick: handleAICutToNewTrack,
-        disabled: analysisState.isRunning,
-        className: "py-1 bg-fuchsia-800 hover:bg-fuchsia-700 text-white font-bold rounded text-xs border border-fuchsia-600 flex items-center justify-center gap-1"
-      }, /*#__PURE__*/React.createElement("span", {
-        className: "inline-flex items-center shrink-0"
-      }, /*#__PURE__*/React.createElement("i", {
-        "data-lucide": "scissors",
-        className: "w-3 h-3"
-      })), " Cut"), /*#__PURE__*/React.createElement("button", {
-        onClick: handleAIAnalysicLoop,
-        disabled: analysisState.isRunning,
-        className: "py-1 bg-violet-800 hover:bg-violet-700 text-violet-100 font-bold rounded text-xs border border-violet-600 flex items-center justify-center gap-1"
-      }, /*#__PURE__*/React.createElement("span", {
-        className: "inline-flex items-center shrink-0"
-      }, /*#__PURE__*/React.createElement("i", {
-        "data-lucide": "sparkles",
-        className: "w-3 h-3"
-      })), " Loop")), /*#__PURE__*/React.createElement("div", {
+        "data-lucide": "cpu",
+        className: "w-3 h-3 text-purple-400"
+      })), /*#__PURE__*/React.createElement("select", {
+        value: selectedProviderId,
+        onChange: e => setSelectedProviderId(e.target.value),
+        className: "flex-1 bg-[#141414] text-zinc-200 border border-zinc-700 rounded px-1 py-0.5 text-xs font-mono focus:outline-none focus:border-purple-600"
+      }, aiProviders.length === 0 ? /*#__PURE__*/React.createElement("option", {
+        value: ""
+      }, "Chưa có provider") : aiProviders.map(p => /*#__PURE__*/React.createElement("option", {
+        key: p.id,
+        value: p.id
+      }, p.name, p.is_active ? '' : ' (inactive)')))), /*#__PURE__*/React.createElement("div", {
         className: "border-t border-zinc-800 pt-1.5 mt-1"
       }, /*#__PURE__*/React.createElement("div", {
         className: "text-xs font-bold text-zinc-400 uppercase mb-1 flex items-center gap-1"
@@ -8225,15 +8340,15 @@ const App = () => {
         className: "w-full bg-[#1e1e1e] text-zinc-200 p-1.5 rounded border border-zinc-700 focus:outline-none focus:border-purple-600 font-mono text-xs resize-none",
         rows: 2,
         onKeyDown: e => {
-          if (e.key === 'Enter' && (e.ctrlKey || e.metaKey)) {
+          if (e.key === 'Enter' && !e.shiftKey) {
             e.preventDefault();
-            window.executeAIPrompt();
+            handleAISend();
           }
         }
       }), /*#__PURE__*/React.createElement("div", {
         className: "flex items-center gap-1 mt-1"
       }, /*#__PURE__*/React.createElement("button", {
-        onClick: () => window.executeAIPrompt(),
+        onClick: handleAISend,
         disabled: aiProcessing,
         className: "flex-1 py-1 bg-purple-700 hover:bg-purple-600 text-white font-bold rounded text-xs border border-purple-500 flex items-center justify-center gap-1"
       }, aiProcessing ? 'Đang suy luận...' : /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement("span", {
@@ -8249,10 +8364,10 @@ const App = () => {
         className: "px-2 py-1 bg-zinc-800 hover:bg-zinc-700 text-zinc-400 rounded text-xs border border-zinc-700"
       }, "Clear")), /*#__PURE__*/React.createElement("div", {
         className: "text-xs text-zinc-600 mt-0.5"
-      }, "Ctrl+Enter để gửi nhanh")), /*#__PURE__*/React.createElement("div", {
-        className: "border-t border-zinc-800 pt-1.5 mt-1"
+      }, "Enter để gửi nhanh")), /*#__PURE__*/React.createElement("div", {
+        className: "border-t border-zinc-800 pt-1.5 mt-1 flex-1 min-h-0 flex flex-col"
       }, /*#__PURE__*/React.createElement("div", {
-        className: "text-xs font-bold text-zinc-400 uppercase mb-1 flex items-center justify-between"
+        className: "text-xs font-bold text-zinc-400 uppercase mb-1 flex items-center justify-between shrink-0"
       }, /*#__PURE__*/React.createElement("span", {
         className: "inline-flex items-center gap-1"
       }, /*#__PURE__*/React.createElement("i", {
@@ -8281,9 +8396,9 @@ const App = () => {
         },
         className: "text-xs text-amber-400 hover:text-amber-300 border border-amber-800 rounded px-1 py-0.5"
       }, "Undo"))), /*#__PURE__*/React.createElement("div", {
-        className: "flex-1 overflow-y-auto no-scrollbar bg-[#0f0f0f] rounded border border-zinc-800 p-1 max-h-[120px]"
+        className: "flex-1 overflow-y-auto no-scrollbar bg-[#0f0f0f] rounded border border-zinc-800 p-1 select-text"
       }, aiActionLog.length === 0 ? /*#__PURE__*/React.createElement("div", {
-        className: "text-xs text-zinc-600 italic"
+        className: "text-xs text-zinc-600 italic select-text"
       }, "Chưa có hành động nào.") : aiActionLog.map((entry, i) => /*#__PURE__*/React.createElement("div", {
         key: i,
         className: `text-xs font-mono py-0.5 border-b border-zinc-900 last:border-0 ${entry.type === 'error' ? 'text-red-400' : entry.type === 'status' ? 'text-zinc-400 italic' : entry.type === 'undo' ? 'text-amber-400' : 'text-zinc-300'}`
@@ -9732,7 +9847,12 @@ const App = () => {
     onClose: () => setProfileModalOpen(false)
   }), /*#__PURE__*/React.createElement(AIConfigModal, {
     isOpen: aiConfigModalOpen,
-    onClose: () => setAiConfigModalOpen(false)
+    onClose: () => setAiConfigModalOpen(false),
+    onConfigSaved: providers => {
+      setAiProviders(providers);
+      const active = providers.find(p => p.is_active) || providers[0];
+      if (active) setSelectedProviderId(active.id);
+    }
   }), /*#__PURE__*/React.createElement(SystemManagerModal, {
     isOpen: systemManagerModalOpen,
     onClose: () => setSystemManagerModalOpen(false)
diff --git a/app/static/js/services/aiGateway.js b/app/static/js/services/aiGateway.js
index 4308f2c..7f1d993 100644
--- a/app/static/js/services/aiGateway.js
+++ b/app/static/js/services/aiGateway.js
@@ -63,8 +63,26 @@ const AIGateway = (function() {
     }
   }];
 
+  function parseOrigin(urlStr) {
+    try { const u = new URL(urlStr); return `${u.protocol}//${u.hostname}${u.port ? ':'+u.port : ''}`; } catch (_) { return null; }
+  }
+
+  function isLocalhost(urlStr) {
+    try {
+      const u = new URL(urlStr);
+      return u.hostname === 'localhost' || u.hostname === '127.0.0.1' || u.hostname === '0.0.0.0' || u.hostname === '::1';
+    } catch (_) { return false; }
+  }
+
   async function callLLM({ provider, model, apiKey, baseUrl, messages, tools, toolChoice }) {
-    const url = `${baseUrl.replace(/\/$/, '')}/chat/completions`;
+    const base = baseUrl.replace(/\/$/, '');
+    const url = `${base}/chat/completions`;
+    const origin = window.location.origin;
+    const urlOrigin = parseOrigin(url);
+    const appOrigin = parseOrigin(origin);
+    const sameOrigin = urlOrigin === appOrigin;
+    const targetIsLocal = isLocalhost(url);
+
     const headers = {
       'Content-Type': 'application/json',
       ...(apiKey ? { 'Authorization': `Bearer ${apiKey}` } : {})
@@ -77,15 +95,29 @@ const AIGateway = (function() {
       ...(toolChoice ? { tool_choice: toolChoice } : {})
     };
 
-    const response = await fetch(url, {
-      method: 'POST',
-      headers,
-      body: JSON.stringify(body)
-    });
+    let response;
+
+    if (sameOrigin) {
+      response = await fetch(url, {
+        method: 'POST',
+        headers,
+        body: JSON.stringify(body)
+      });
+    } else if (targetIsLocal && !isLocalhost(origin)) {
+      throw new Error(`AI provider local (${url}) không khả dụng từ domain từ xa (${origin}).\nHãy dùng provider từ xa (OpenAI, Anthropic...) hoặc dùng CORS plugin trình duyệt.`);
+    } else {
+      response = await fetch(`${origin}/api/v1/ai/proxy`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ url, headers, body })
+      });
+    }
 
     if (!response.ok) {
       const errText = await response.text();
-      throw new Error(`LLM API error ${response.status}: ${errText}`);
+      let detail = errText;
+      try { const j = JSON.parse(errText); if (j.detail) detail = j.detail; } catch (_) {}
+      throw new Error(detail);
     }
 
     return await response.json();
diff --git a/app/storage/sonicforge.db b/app/storage/sonicforge.db
index 0e82cf3..d2ae6ec 100644
Binary files a/app/storage/sonicforge.db and b/app/storage/sonicforge.db differ