feat(extensions): add zed extension

[jonaylor89]

Status

READY

Breaking Changes

NO

Description

Adds a Zed editor extension for the Bloc library at extensions/zed/, mirroring the functionality of the existing VSCode extension.

https://zed.dev/docs/extensions/developing-extensions

Features:

• Bloc Language Server — Automatically downloads the bloc_tools binary from GitHub releases and runs it as an LSP for Dart files, providing bloc-specific lint diagnostics. Supports macOS/Linux/Windows on arm64/x64.
• 35 Dart Snippets — All snippets from the VSCode extension ported to Zed's format, including core bloc/cubit, flutter_bloc widgets, context helpers, imports, testing (mocks/fakes), and freezed snippets.

Extension structure:

• extension.toml — Extension manifest
• Cargo.toml / src/lib.rs — Rust WASM code for language server integration
• snippets/dart.json — All Dart snippets
• LICENSE / README.md — MIT license and documentation

Type of Change

• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️

[jonaylor89]

I was going to publish this on my own github but figured it'd be better to have it with everything else for legitimacy. I use this extension in my current dev setup

[felangel]

Thanks so much for taking the time to do this! I’ll take a closer look later today and will try to get this merged and published this weekend 🙏