fix(mcp): v0.31.1 — published package was missing scripts/docs-usage.mjs

End-to-end testing through npx caught two real bugs the local smoke test
hadn't:

1. `npx slintcn-mcp` doesn't resolve — slintcn-mcp is a bin entry in the
   slintcn package, not a separate npm package. Correct invocation is
   `npx -p slintcn slintcn-mcp`. README MCP config updated.

2. scripts/docs-usage.mjs was not in package.json's `files` array, so the
   published package crashed on startup with ERR_MODULE_NOT_FOUND when the
   MCP server tried to import the usage snippets. Added it to files; verified
   `npm pack --dry-run` now ships the 15.6 kB file.

Re-verified end-to-end against the published 0.31.1 from a fresh tmp dir:
initialize + tools/list + view_component(data-table) + install_command all
return correct responses.

Author: stevekwon211

README.md

@@ -169,11 +169,14 @@ Wire it into your client's MCP config:
 ```json
 {
   "mcpServers": {
-    "slintcn": { "command": "npx", "args": ["-y", "slintcn-mcp"] }
+    "slintcn": { "command": "npx", "args": ["-y", "-p", "slintcn", "slintcn-mcp"] }
   }
 }
 ```
 
+(`slintcn-mcp` is a bin entry inside the `slintcn` package, not a separate
+package — `-p slintcn` tells npx which package to pull, then runs that bin.)
+
 Exposed tools:
 
 | Tool | What it does |

examples/showcase/Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "slintcn-showcase"
-version = "0.31.0"
+version = "0.31.1"
 edition = "2021"
 publish = false
 

examples/showcase/Cargo.toml

@@ -1,6 +1,6 @@
 {
   "name": "slintcn",
-  "version": "0.31.0",
+  "version": "0.31.1",
   "description": "Beautiful copy-paste Slint components — shadcn for native UI",
   "keywords": [
     "slint",
@@ -37,7 +37,8 @@
     "bin",
     "registry",
     "templates",
-    "schema"
+    "schema",
+    "scripts/docs-usage.mjs"
   ],
   "engines": {
     "node": ">=20"

package.json

@@ -2,7 +2,7 @@
   "$schema": "https://slintcn.dev/schema/registry.schema.json",
   "name": "default",
   "homepage": "https://stevekwon211.github.io/slintcn",
-  "version": "0.31.0",
+  "version": "0.31.1",
   "description": "Dark glass theme — shadcn-adjacent primitives for Slint",
   "slintVersion": ">=1.16",
   "theme": {