feat(transcription): add meeting assistant micro-service v0.1.0

- Added FastAPI backend with FFmpeg and Gemini 2.0 integration
- Added React frontend with upload and meeting list
- Integrated into main docker-compose stack and dashboard

transcription-tool/frontend/src/App.tsx

@@ -0,0 +1,121 @@
+import { useState, useEffect } from 'react'
+import axios from 'axios'
+import { Upload, Mic, FileText, Clock, CheckCircle2, Loader2, AlertCircle, ChevronRight } from 'lucide-react'
+import clsx from 'clsx'
+
+const API_BASE = '/tr/api'
+
+interface Meeting {
+  id: number
+  title: string
+  status: string
+  date_recorded: string
+  duration_seconds?: number
+  created_at: string
+}
+
+export default function App() {
+  const [meetings, setMeetings] = useState<Meeting[]>([])
+  const [uploading, setUploading] = useState(false)
+  const [error, setError] = useState<string | null>(null)
+
+  const fetchMeetings = async () => {
+    try {
+      const res = await axios.get(`${API_BASE}/meetings`)
+      setMeetings(res.data)
+    } catch (e) {
+      console.error("Failed to fetch meetings", e)
+    }
+  }
+
+  useEffect(() => {
+    fetchMeetings()
+    const interval = setInterval(fetchMeetings, 5000) // Poll every 5s
+    return () => clearInterval(interval)
+  }, [])
+
+  const handleUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0]
+    if (!file) return
+
+    setUploading(true)
+    setError(null)
+    const formData = new FormData()
+    formData.append('file', file)
+
+    try {
+      await axios.post(`${API_BASE}/upload`, formData)
+      fetchMeetings()
+    } catch (e) {
+      setError("Upload failed. Make sure the file is not too large.")
+    } finally {
+      setUploading(false)
+    }
+  }
+
+  return (
+    <div className="min-h-screen bg-slate-50 dark:bg-slate-950 text-slate-900 dark:text-slate-200">
+      <div className="max-w-5xl mx-auto px-4 py-12">
+        <header className="flex items-center justify-between mb-12">
+          <div>
+            <h1 className="text-3xl font-bold tracking-tight">Meeting Assistant</h1>
+            <p className="text-slate-500 mt-2">Transcribe and analyze your meetings with Gemini 2.0</p>
+          </div>
+          <label className={clsx(
+            "flex items-center gap-2 px-6 py-3 bg-blue-600 hover:bg-blue-500 text-white rounded-full font-semibold transition-all cursor-pointer shadow-lg shadow-blue-500/20",
+            uploading && "opacity-50 cursor-not-allowed"
+          )}>
+            {uploading ? <Loader2 className="h-5 w-5 animate-spin" /> : <Upload className="h-5 w-5" />}
+            {uploading ? "Uploading..." : "New Meeting"}
+            <input type="file" className="hidden" accept="audio/*" onChange={handleUpload} disabled={uploading} />
+          </label>
+        </header>
+
+        {error && (
+          <div className="mb-8 p-4 bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-xl text-red-600 dark:text-red-400 flex items-center gap-3">
+            <AlertCircle className="h-5 w-5" />
+            {error}
+          </div>
+        )}
+
+        <div className="grid gap-4">
+          {meetings.length === 0 ? (
+            <div className="text-center py-20 bg-white dark:bg-slate-900 rounded-3xl border-2 border-dashed border-slate-200 dark:border-slate-800">
+              <Mic className="h-12 w-12 mx-auto mb-4 text-slate-300" />
+              <p className="text-slate-500 font-medium">No meetings yet. Upload your first audio file.</p>
+            </div>
+          ) : (
+            meetings.map(m => (
+              <div key={m.id} className="group bg-white dark:bg-slate-900 p-6 rounded-2xl border border-slate-200 dark:border-slate-800 hover:shadow-xl transition-all flex items-center justify-between cursor-pointer">
+                <div className="flex items-center gap-4">
+                  <div className={clsx(
+                    "p-3 rounded-xl",
+                    m.status === 'COMPLETED' ? "bg-green-100 dark:bg-green-900/30 text-green-600" :
+                    m.status === 'ERROR' ? "bg-red-100 dark:bg-red-900/30 text-red-600" :
+                    "bg-blue-100 dark:bg-blue-900/30 text-blue-600 animate-pulse"
+                  )}>
+                    {m.status === 'COMPLETED' ? <CheckCircle2 className="h-6 w-6" /> : <FileText className="h-6 w-6" />}
+                  </div>
+                  <div>
+                    <h3 className="font-bold text-lg leading-tight">{m.title}</h3>
+                    <div className="flex items-center gap-4 mt-1 text-sm text-slate-500">
+                      <span className="flex items-center gap-1"><Clock className="h-3.5 w-3.5" /> {new Date(m.created_at).toLocaleDateString()}</span>
+                      {m.duration_seconds && (
+                        <span>{Math.round(m.duration_seconds / 60)} min</span>
+                      )}
+                      <span className={clsx(
+                        "font-semibold uppercase tracking-wider text-[10px] px-2 py-0.5 rounded",
+                        m.status === 'COMPLETED' ? "bg-green-100 text-green-700" : "bg-slate-100 text-slate-600"
+                      )}>{m.status}</span>
+                    </div>
+                  </div>
+                </div>
+                <ChevronRight className="h-6 w-6 text-slate-300 group-hover:text-blue-500 transition-colors" />
+              </div>
+            ))
+          )}
+        </div>
+      </div>
+    </div>
+  )
+}

transcription-tool/frontend/src/index.css

@@ -0,0 +1,7 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+:root {
+  color-scheme: light dark;
+}

transcription-tool/frontend/src/main.tsx

@@ -0,0 +1,10 @@
+import React from 'react'
+import ReactDOM from 'react-dom/client'
+import App from './App'
+import './index.css'
+
+ReactDOM.createRoot(document.getElementById('root')!).render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+)

transcription-tool/frontend/src/vite-env.d.ts

@@ -0,0 +1 @@
+/// <reference types="vite/client" />