feat: add vite support

[janvennemann]

Summary

I'm opening this as a draft for now since this involves changes across multiple other projects that need to be released first.

• Add Vite as a supported JS bundler alongside the existing Webpack integration
• Add a new ti serve command that starts a Vite dev server and launches the app, enabling HMR-based development
• Skip full rebuilds when serve metadata (tiapp.xml, target, server config) hasn't changed, reusing previous build artifacts instead
• Extract platform launcher logic (Android emulator/device, iOS simulator/device/macOS) from inline hook callbacks into reusable modules for both build and serve commands

Changes

New ti serve command (cli/commands/serve.js)

Orchestrates the Vite dev server lifecycle: starts the server, runs a build (or skips it if artifacts are fresh), then launches the app on the target platform using the extracted launchers.

Vite build hook (cli/hooks/vite.js)

Mirrors the existing Webpack hook pattern. Detects Vite in project dependencies, sets builder.useBundler = true, and runs a one-shot Vite build during build.pre.compile (skipped during serve since the dev server is already running).

Shared Vite utilities (cli/lib/vite-utils.js)

Resolves the project-local Vite installation, finds config files, and provides the tiBridgePlugin/createTiViteBridge helpers used by both the build hook and serve command.

Serve helpers (cli/lib/serve/)

• start-server.js — bootstraps the Vite dev server with HMR configuration
• metadata.js — content-hash based staleness check for build artifact reuse
• resolve-host.js — picks the first non-internal IPv4 address for the dev server

Platform launcher extraction

• Android: android/cli/lib/launcher.js — extracted from android/cli/hooks/run.js
• iOS device: iphone/cli/lib/device-installer.js — extracted from iphone/cli/hooks/install.js
• iOS simulator/macOS: iphone/cli/lib/simulator-launcher.js — extracted from iphone/cli/hooks/run.js
• Fixes command injection in the macOS launcher (exec → execFile)

Build command updates

• Renamed useWebpack → useBundler across Android/iOS build commands and ProcessJsTask
• Exported builder instance from both platform _build.js files so serve can access builder state

[cb1kenobi]

Neat! I need some time to review. :)

[hansemannn]

@janvennemann So this one needs to be reviewed, the titanium-vite packages need to be published and we'll need some docs / a guide? More?

[janvennemann]

@janvennemann So this one needs to be reviewed, the titanium-vite packages need to be published and we'll need some docs / a guide? More?

Yeah, that's roughly it, and the updated https://github.com/tidev/alloy-devkit packages also need to be published. I'd also mark this as a new experimental feature as I will surely need to flesh out a few additional thing with the Vite build. Especially the new dev workflow / liveview replacement that is the serve command, as i've only tested with the Vite production build after updating to Vite 8.

[hansemannn]

Sounds good. Please make sure to mark as review / assign reviewers once ready. Would like to have this out for broader testing in the next Ti SDK update (end of May if doable)