vscode-extension: LuaMap Tools for VS Code over LuaBridge

[devin-ai-integration]

Summary

Adds vscode-extension/, a TypeScript VS Code extension that speaks the existing LuaBridge loopback NDJSON protocol (v1) — the new supported IDE path. The IntelliJ plugin (ide-plugin/) is marked deprecated but retained: Gradle composite build, launcher fatJar bundling, and --setup-ide/--ide are untouched, so nothing regresses.

Extension contents:

• src/luabridge.ts — vscode-free protocol layer: encodeRequest/LineFramer (incremental NDJSON decode) and BridgeClient (net.Socket, pipelined requests matched by id, state machine disconnected→connecting→connected|error, close/drop callbacks). All I/O is event-driven — nothing blocks the extension host UI.
• src/session.ts — LuaBridgeSession controller: connect/disconnect/reconnect, ~1.5 s auto-reconnect, periodic poll (status + an eval of an npc.list() CSV snippet — no mod/protocol change needed), plus parseStatus/parseNpcs/replyText shared helpers.
• src/sidebar.ts — activity-bar container with three tree views: Session (state + Connect/Disconnect/Reconnect/Run/Evaluate/Query actions), NPCs (live inspector: name + x/y/z, refreshes each poll), Scripts (list results, click to run).
• src/completion.ts — Lua completion + snippets for world.*, npc.*, player.*, chat, log, print.
• src/extension.ts — commands LuaMap: Connect/Disconnect/Reconnect/Run Script/Evaluate Lua/Query Block/Refresh NPCs, status-bar badge, LuaMap output channel as the eval/console log, settings luamap.bridge.host/port (defaults 127.0.0.1:25575), luamap.autoReconnect, luamap.pollIntervalSeconds. Disposal kills sockets + timers.

Tests: 14 node:test cases over a mock loopback NDJSON server — framing (partial/coalesced/blank/malformed lines), v1 wire format, id-matched pipelining, connect/drop/reconnect + session polling, status/NPC/block/error reply parsing. npm test = tsc + node --test, no VS Code instance needed.

Verification

• npm test — 14/14 green
• ./gradlew clean build — BUILD SUCCESSFUL, all existing tests green; verifyPluginXml + verifyLauncherJar ran
• vsce package → luamap-vscode-0.4.0.vsix (20 KB, 15 files)
• Prerelease with the VSIX + sha256: https://github.com/CommunityPokeOrg/minecraft-lua-map-maker/releases/tag/v0.4.0-vscode

Limitations

• Extension UI not exercised inside a live VS Code on this headless VM — correctness is covered at the protocol/session layer only.
• NPC inspector state = name + position only (the mod exposes no richer live state).
• No breakpoint debugging — protocol has no frame/step ops (documented roadmap).
• --setup-ide/--ide still provision IntelliJ + the deprecated plugin; a follow-up could swap that to code --install-extension once this path has soaked.

Link to Devin session: https://app.devin.ai/sessions/f2c11399d60948a394f9836472375e2f
Open in Devin Desktop: https://app.devin.ai/desktop/session/f2c11399d60948a394f9836472375e2f?variant=devin
Requested by: @CommunityPoke

[devin-ai-integration]

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