Feat/elastic scroll

[rust17]

This PR marks a major architectural milestone: migrating vstable from Electron to Tauri 2.0. This transition primarily addresses the need for native elastic scroll (rubber-banding) in macOS sub-containers while significantly improving application performance and footprint.

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Overview

The migration to Tauri 2.0 was driven by the limitations of Electron in supporting native WebKit elastic scrolling for local containers on macOS. By moving to a Rust-based core, we now achieve better system integration, a drastically smaller bundle size, and lower resource consumption.

Key Changes

1. Architecture Refactor

• Core Engine: Replaced the Node.js Main process and Preload scripts with a Rust core.
• Sidecar Integration: The Go-based engine now runs as a Tauri Sidecar, communicating with the Rust layer via gRPC.
• IPC Bridge: Shifted the frontend from window.api to Tauri's invoke system. Persistent storage is now handled via tauri-plugin-store.

2. Frontend & Build System

• Build Tooling: Migrated from electron-vite to standard Vite, simplifying the build pipeline.
• Dependency Cleanup: Removed heavy dependencies including electron and electron-builder.
• UI Optimizations: Enabled .elastic-scroll across key components (e.g., ResultGrid, DatabaseTree) with overscroll-behavior: contain to polish the macOS user experience.

3. Engineering & Testing

• CI/CD: Updated GitHub Actions to utilize tauri-apps/tauri-action for cross-platform compilation and automated releases.
• E2E Testing: Refactored the Playwright suite to mock Tauri's IPC internals (window.__TAURI_INTERNALS__), ensuring full-link validation in headless environments.

Performance Benchmarks

Metric	Electron (Old)	Tauri (New)
Installer Size	~100MB	~10MB
Memory Usage	High	Significantly Reduced

Testing Checklist

• DB Connectivity: Verified MySQL and PostgreSQL connections.
• Data Grid: CRUD operations and pagination working as expected.
• Schema Designer: DDL generation and execution validated.
• Cross-platform: Successful builds for macOS (Intel/ARM) and Windows.