feat(editor): Implemented / overridden gutter markers (#106)

Adds gutter markers for type hierarchies: ↓ "Is implemented / Has subclasses / Is overridden" on types and methods with implementations, ↑ "Implements / Overrides method in X" on methods that implement or override a supertype method. One target navigates, several open the Choose Implementation popup. Settings › Editor › General › Gutter Icons gets two toggles. Markers come from the language server: a new batched `lsp_implementations` command (up to 4 concurrent, cancellable, sharing the goto query path) for ↓, and the Super Method lookup for ↑, which now prefers the overload with matching parameters (also fixes ⌘U on overloads). Only declarations near the viewport are queried, debounced, cached per document version and cancelled when superseded. Works for any server with implementation / type hierarchy support; servers without type hierarchy show ↓ only. Fixes #99 Claude-Session: https://claude.ai/code/session_01VUYsdXA2nkF5v6zsC93dpn
2026-11-09 11:15:40 +02:00 · 2026-10-27 21:02:54 +08:00
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+<!-- Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license. -->
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+<!-- Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license. -->
+<svg width="14" height="14" viewBox="0 0 14 14" fill="none" xmlns="http://www.w3.org/2000/svg">
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+</svg>
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+<!-- Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license. -->
+<svg width="14" height="14" viewBox="0 0 14 14" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M10 7C10 9.48528 7.98528 11.5 5.5 11.5C3.01472 11.5 1 9.48528 1 7C1 4.51472 3.01472 2.5 5.5 2.5C7.98528 2.5 10 4.51472 10 7Z" fill="#25324D"/>
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@@ -322,6 +322,10 @@ const ICONS = {
  "gutter-run-all": "actions/runAll",
  "gutter-run-passed": "gutter/runSuccess",
  "gutter-run-failed": "gutter/runError",
+  "gutter-implemented": "gutter/implementedMethod",
+  "gutter-implementing": "gutter/implementingMethod",
+  "gutter-overridden": "gutter/overridenMethod",
+  "gutter-overriding": "gutter/overridingMethod",
  stop: "run/stop",
  rerun: "run/rerun",
  "rerun-filled": "run/rerun_stroke",