v0.36.0

What's Changed

• Plan 203: Split internal/lsp/server.go and symbols.go by @jeduden in #499
• Plan 203 (finish): split symbols.go and extract server code-action handlers by @jeduden in #504
• docs(plan 219): record multiplexed AST walk as a profiler-backed negative by @jeduden in #498
• refactor(gctune): single-source the batch GC default; apply it in WASM too by @jeduden in #505
• test(pkg/mdsmith): add unit tests for five private helpers (plan 223) by @jeduden in #503
• Rename pr-fixup skill to gh-pr-fixup; replace merge-queue Copilot gate with /code-review by @jeduden in #506
• benchmark: one honest snapshot for every perf claim; fix the apparent slowdown by @jeduden in #502

Full Changelog: v0.35.0...v0.36.0