feat: implement Whisper transcription engine and project documentation

scripts/setup-binaries.js

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+const fs = require('fs')
+const path = require('path')
+const https = require('https')
+const AdmZip = require('adm-zip')
+
+const binDir = path.join(__dirname, '../bin')
+const modelsDir = path.join(binDir, 'models')
+
+if (!fs.existsSync(binDir)) fs.mkdirSync(binDir, { recursive: true })
+if (!fs.existsSync(modelsDir)) fs.mkdirSync(modelsDir, { recursive: true })
+
+const downloadFile = (url, dest) => {
+  return new Promise((resolve, reject) => {
+    // Check if we need to follow redirects
+    const req = https.get(url, (res) => {
+      if (res.statusCode === 301 || res.statusCode === 302) {
+        return downloadFile(res.headers.location, dest).then(resolve).catch(reject)
+      }
+      
+      if (res.statusCode !== 200) {
+        return reject(new Error(`Failed to download: ${res.statusCode} ${res.statusMessage}`))
+      }
+
+      const file = fs.createWriteStream(dest)
+      res.pipe(file)
+      file.on('finish', () => {
+        file.close(resolve)
+      })
+    })
+
+    req.on('error', (err) => {
+      fs.unlink(dest, () => reject(err))
+    })
+  })
+}
+
+async function setup() {
+  try {
+    console.log('Downloading Const-me Whisper (v1.12)...')
+    const whisperZipPath = path.join(binDir, 'cli.zip')
+    await downloadFile('https://github.com/Const-me/Whisper/releases/download/1.12.0/cli.zip', whisperZipPath)
+
+    console.log('Extracting Whisper...')
+    const zip = new AdmZip(whisperZipPath)
+    zip.extractAllTo(path.join(binDir, 'whisper_temp'), true)
+    
+    // Find executable and dlls
+    const extractPath = path.join(binDir, 'whisper_temp')
+    const files = fs.readdirSync(extractPath)
+    
+    // In Const-me Whisper release, there's usually a cli.exe or main.exe
+    let exeFound = false
+    files.forEach(file => {
+      if (file.endsWith('.exe')) {
+        // We'll rename the primary exe to whisper.exe
+        if (!exeFound) {
+            fs.copyFileSync(path.join(extractPath, file), path.join(binDir, 'whisper.exe'))
+            exeFound = true
+        }
+      } else if (file.endsWith('.dll')) {
+        fs.copyFileSync(path.join(extractPath, file), path.join(binDir, file))
+      }
+    })
+    
+    // Cleanup
+    fs.rmSync(extractPath, { recursive: true, force: true })
+    fs.unlinkSync(whisperZipPath)
+
+    console.log('Downloading Base Model (140MB)...')
+    const modelPath = path.join(modelsDir, 'ggml-base.bin')
+    if (!fs.existsSync(modelPath)) {
+      await downloadFile('https://huggingface.co/ggerganov/whisper.cpp/resolve/main/ggml-base.bin', modelPath)
+    }
+
+    console.log('Setup Complete!')
+  } catch (error) {
+    console.error('Setup failed:', error)
+  }
+}
+
+setup()

scripts/setup-binaries.ps1

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+$ProgressPreference = 'SilentlyContinue'
+
+$binDir = "bin"
+$modelsDir = "bin/models"
+
+# Cleanup existing lock files if any
+if (Test-Path "$binDir/ffmpeg.zip") { Remove-Item "$binDir/ffmpeg.zip" -Force }
+if (Test-Path "$binDir/whisper.zip") { Remove-Item "$binDir/whisper.zip" -Force }
+
+if (-not (Test-Path $binDir)) { New-Item -ItemType Directory -Path $binDir }
+if (-not (Test-Path $modelsDir)) { New-Item -ItemType Directory -Path $modelsDir }
+
+Write-Host "Downloading FFmpeg..." -ForegroundColor Cyan
+$ffmpegZip = "$binDir/ffmpeg_dl.zip"
+Invoke-WebRequest -Uri "https://www.gyan.dev/ffmpeg/builds/ffmpeg-release-essentials.zip" -OutFile $ffmpegZip
+
+Write-Host "Downloading Const-me Whisper (v1.12)..." -ForegroundColor Cyan
+$whisperZip = "$binDir/whisper_dl.zip"
+# User provided link: https://github.com/Const-me/Whisper/releases/tag/1.12.0
+# Direct download link for Whisper.zip
+Invoke-WebRequest -Uri "https://github.com/Const-me/Whisper/releases/download/1.12.0/Library.zip" -OutFile $whisperZip
+
+Write-Host "Downloading Base Model (140MB)..." -ForegroundColor Cyan
+$modelFile = "$modelsDir/ggml-base.bin"
+if (-not (Test-Path $modelFile)) {
+    Invoke-WebRequest -Uri "https://huggingface.co/ggerganov/whisper.cpp/resolve/main/ggml-base.bin" -OutFile $modelFile
+}
+
+Write-Host "Extracting FFmpeg..." -ForegroundColor Green
+Expand-Archive -Path $ffmpegZip -DestinationPath "$binDir/ffmpeg_temp" -Force
+$ffmpegExe = Get-ChildItem -Path "$binDir/ffmpeg_temp" -Filter "ffmpeg.exe" -Recurse | Select-Object -First 1
+Copy-Item $ffmpegExe.FullName -Destination "$binDir/ffmpeg.exe"
+Remove-Item -Path "$binDir/ffmpeg_temp" -Recurse -Force
+Remove-Item $ffmpegZip
+
+Write-Host "Extracting Whisper..." -ForegroundColor Green
+Expand-Archive -Path $whisperZip -DestinationPath "$binDir/whisper_temp" -Force
+# Const-me zip might have WhisperDesktop.exe and Whisper.dll
+# We look for any exe that looks like a CLI or the main app
+$whisperExe = Get-ChildItem -Path "$binDir/whisper_temp" -Filter "*.exe" -Recurse | Select-Object -First 1
+Copy-Item $whisperExe.FullName -Destination "$binDir/whisper.exe"
+# Also copy DLLs if any
+Get-ChildItem -Path "$binDir/whisper_temp" -Filter "*.dll" -Recurse | ForEach-Object {
+    Copy-Item $_.FullName -Destination "$binDir/$($_.Name)"
+}
+Remove-Item -Path "$binDir/whisper_temp" -Recurse -Force
+Remove-Item $whisperZip
+
+Write-Host "Setup Complete!" -ForegroundColor Yellow