Expand request review tooling and KB

docs/kb/editor-capabilities.md

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+# Editor Capabilities Map
+
+This file is a shorthand capability matrix for request analysis. It is intentionally less detailed than the source code, but more concrete than the original scaffold summaries.
+
+## Tile Canvas Editing
+
+- Owned primarily by `Layers And Tile Editing`
+- Supports:
+  - freehand tile painting
+  - rectangle and circle outline strokes
+  - line strokes with axis lock
+  - erasing on the active layer
+  - sparse height-layer paint and erase workflows
+  - background-cell modes for explicit tile, transparent hole, and inherit
+- Depends on:
+  - `Chunk Storage And Streaming`
+  - `Content Catalog And Records`
+  - `Persistence And Save Pipeline`
+  - `Rendering And Viewport`
+
+## Graphics Painter
+
+- Owned primarily by `Graphics Painter`
+- Supports:
+  - rectangle, circle, triangle, and line tools
+  - outline, fill, and outline + fill variants
+  - shape erasers
+  - animation timeline editing and preview
+  - transform-oriented tool menus
+- Depends on:
+  - `Content Catalog And Records`
+  - `Floating Window Shell`
+  - `Rendering And Viewport`
+
+## Chunk Operations
+
+- Shared by `Chunk Storage And Streaming` and `World Overview`
+- Supports:
+  - neighborhood chunk loading
+  - chunk composition into the current world edit surface
+  - chunk move, duplicate, rotate, flip, and delete
+  - chunk background tile paint and restore
+  - bookmark and POI workflows
+- Depends on:
+  - `Persistence And Save Pipeline`
+  - `Worlds`
+  - `Windows`
+
+## Request Review
+
+- Owned primarily by `Request Board`
+- Supports:
+  - public submission intake
+  - standardized tag assignment
+  - structured review rationale
+  - possible options for manual triage
+  - admin-side edits and approval
+  - queue worker invocation
+- Depends on:
+  - `Launcher`
+  - `Wiki`
+  - request-analysis worker and KB files
+
+## Relationship Rules For Triage
+
+- If a request asks for how a brush or rectangle tool behaves on the map canvas, start with `Layers And Tile Editing`.
+- If a request asks for how a rectangle or shape tool behaves inside the art editor, start with `Graphics Painter`.
+- If a request asks about chunk movement, chunk duplication, or world-scale operations, start with `World Overview`, then confirm any storage implications in `Chunk Storage And Streaming`.
+- If a request is mostly about presentation, launch flow, repo links, or public site layout, start with `Launcher Home`.