feat: ambitious refactor and release v1.0.0

[evanlindsey]

Summary

Plugin Overhaul

• Namespace: all types in UnityWebGLSignalR
• SignalROptions for auth, transport, timeouts, reconnect config
• Invoke(string, params object[]) replaces 10 overloads
• IsConnected property, IDisposable support
• Assembly definition (UnityWebGLSignalR.asmdef) for proper references

Bug Fixes (8)

• Memory leak in jslib invokeCallback (malloc without free)
• Falsy argument bug in InvokeJs (empty string, "0", "false")
• Null handler crash, async void crash, duplicate On() crash
• Reconnecting NRE (Editor and jslib)
• Event handler race condition (Editor and jslib — handlers now registered before start())
• WebGL Dispose() static dictionary leak

Testing

• 28 EditMode tests (options serialization, plugin logic)
• 5 PlayMode integration tests (connect, disconnect, invoke/on round-trip)
• Playwright e2e smoke test for WebGL jslib verification

CI/CD

• ci.yml — Runs on PRs: test → build → smoke
• release.yml — Runs on merge to main: version → build WebGL + export .unitypackage (parallel) → commit wwwroot → tag → GitHub Release
• test.yml — Reusable workflow used by CI
• setup-unity composite action for shared runner setup
• Release dry-run mode via workflow_dispatch

WebGL Template

• Custom template (Assets/WebGLTemplates/SignalR/) with SignalR JS client baked in

Cleanup

• Removed version.txt — version derived from git tags
• ExportPackage namespaced to UnityWebGLSignalR.Editor
• jslib reduced from 240 to ~170 lines
• signalr.ps1 switched from nuget CLI to dotnet restore
• TestScript uses [SerializeField] instead of GameObject.Find

Test Plan

• EditMode tests — 28 passing
• PlayMode tests (Editor) — 5 passing
• PlayMode tests (WebGL player) — 5 passing in browser
• Scene play in Editor — 4-line output displays correctly
• CI workflow validates on PR push (test → build → smoke)
• First release: add version:1.0.0 label