New services added and windows compatibility

[vnetmx]

Description

Add a few improvements to Alice AI, focusing on performance optimization, Windows compatibility:

Dark Theme & UI Fixes

• Configured DaisyUI to use dark theme as default
• Fixed text visibility issues across dropdowns, inputs, placeholders, fieldsets, and tabs
• Added build automation scripts (build-frontend.bat, build-full.bat, build-dev.bat)

Performance Optimization (2-3x faster STT)

• Replaced gRPC fallback-to-CLI with native whisper-server.exe HTTP server
• Reduced transcription time from ~700ms to ~300-400ms
• Added WAV audio conversion utilities
• Implemented structured logging to %APPDATA%/alice-ai-app/logs/

Windows DLL Resolution Fix

• Fixed "spawn UNKNOWN" error on Windows by adding bin/ directory to PATH
• Ensures proper loading of onnxruntime.dll and onnxruntime_providers_shared.dll
• Implemented Piper gRPC service for faster TTS processing

Enhanced Infrastructure

• Added process managers: WhisperHttpServerManager, WhisperServiceManager, LoggingManager, PiperServiceManager
• Created comprehensive documentation for memory system, backend services, voice authentication, and custom tooling
• Added protocol buffer compilation to build process
• Impact: 58 files changed with major improvements to backend architecture, logging infrastructure, and cross-platform compatibility.

What is the purpose of this pull request?

• Bug fix
• New Feature
• [] Documentation update
• [] Other

[pmbstyle]

@vnetmx thank you for your contribution. This PR has several valuable parts but also introduces patterns that don't fit Alice's architecture as an Electron desktop app.

Concerns

1. Dark Theme & UI Fixes section.
   What problem are these fixes trying to solve? Have you encountered issues with dark mode or UI colors chema? If so, it would be very helpful to see examples of those issues.
   "Added build automation scripts (build-frontend.bat, build-full.bat, build-dev.bat)" - why this was added.

// package.json already has:
"build": "npm run build:go && vite build && npx electron-builder"

The npm run build command already handles Go compilation, frontend build, and Electron bundling. What do the new .bat scripts provide that isn't already covered? These scripts treat components as separate (web frontend, backend services) when Electron bundles everything into one desktop app. There is some code and build logic related, but that's more like a candidate for clean-up.

2. Separating STT/TTS services into separate gRPC servers, exposing http API can be a good way to do things for a web app. But this adds overhead (HTTP/gRPC stacks) for same-machine communication. What problem does gRPC solve that can't be handled with the existing internal service coordination?

3. Documentation
   I'm not entirely sure if there is a reason to support extensive developer documentation. This can be generated for a coding agent without the need for extra context (one document, such as CLAUDE.md, which is compact and contains everything needed). Hosting docs separately brings more maintenance issues than solving an actual problem.

What's Good

1. Windows PATH Fix

  // backendManager.ts - THIS IS CORRECT
  const binDir = path.join(backendDir, 'bin')
  const updatedPath = `${binDir}${pathSeparator}${process.env.PATH || ''}`

Why: This fixes the ONNX Runtime DLL loading issue on Windows. This is a legitimate bug fix.

2. Logging Infrastructure

  // loggingManager.ts - THIS IS USEFUL
  electron/main/loggingManager.ts

5. AWS Bedrock Integration (Good, if needed)

  src/services/llmProviders/bedrock.ts

Why: Adding a new LLM provider is a valid functionality.

Recommended Actions

Please Keep:

• Windows PATH fix (with explanation of the DLL issue it solves)
• Logging infrastructure (valuable for debugging)
• AWS Bedrock integration (if users want this provider)

Please Remove:

• All gRPC service code (backend/cmd/*-service/, backend/internal/grpc/, backend/proto/)
• Whisper HTTP server (whisperHttpServerManager.ts)
• Separate build scripts (build-*.bat)

Please Clarify:

• Dark theme fixes (show examples or explain the problem)