feat: move notion docs to standards folder (#5590)

* feat: move notion docs to standards folder

* fix: remove skills mention (automatic now)

standards/frontend/FIGMA_MCP_USAGE.md

@@ -0,0 +1,32 @@
+- [Figma MCP Usage](#figma-mcp-usage)
+	- [Available Tools](#available-tools)
+	- [Adapting Figma Output](#adapting-figma-output)
+
+# Figma MCP Usage
+
+When the Figma MCP server is connected, it can be used to translate Figma designs into production-ready Vue components for this monorepo.
+
+## Available Tools
+
+| Tool                 | Purpose                                                                                                    |
+| -------------------- | ---------------------------------------------------------------------------------------------------------- |
+| `get_design_context` | Primary tool. Returns reference code, a screenshot, and metadata for a given node. Always start here.      |
+| `get_screenshot`     | Returns a visual screenshot of a node without full code context.                                           |
+| `get_variable_defs`  | Returns the design tokens applied to a node.                                                               |
+| `get_metadata`       | Returns an XML overview of node IDs, layer types, names, positions, and sizes for understanding structure. |
+
+Node IDs come from Figma URLs. For `https://figma.com/design/:fileKey/:fileName?node-id=1-2`, the node ID is `1:2` (replace `-` with `:`).
+
+```
+get_design_context(nodeId: "1:2", clientLanguages: "typescript,html,css", clientFrameworks: "vue")
+```
+
+## Adapting Figma Output
+
+The Figma MCP returns generic reference code. It must be adapted to match the Modrinth codebase:
+
+1. **Read `packages/ui/CLAUDE.md`** for color usage rules, surface token mapping, and component patterns.
+2. **Map Figma color variables to `surface-*` tokens** — never use Figma's aliased names like `bg/default` or `bg/raised` directly. The CLAUDE.md has the full mapping table.
+3. **Check `packages/assets/styles/variables.scss`** for tokens not exposed in Figma (brand highlights, semantic backgrounds, shadows).
+4. **Check for existing components** in `packages/ui/src/components/` before building from scratch.
+5. **Match spacing exactly** — do not approximate values from the design.