fix(client): normalize root WebSocket URLs

[Ersaoktaviannn]

Summary

• normalize the Hono Client index alias before constructing WebSocket URLs
• keep protocol translation, query serialization, and custom WebSocket providers unchanged
• preserve real path parameter values equal to index

Before / after

Typed route	Before	After
client.index.$ws() for /	ws://host/index	ws://host/
nested root route	ws://host/api/index	ws://host/api
/:id with id: "index"	ws://host/index	unchanged

Impact

index is the client-side alias for a root route. $get(), $url(), and $path() already remove that synthetic segment, but $ws() did not. As a result, a typed WebSocket client for / attempted its handshake against /index (and a nested root against /api/index), which targets a different route and commonly returns 404.

Normalization runs before path parameter substitution, so a genuine dynamic value named index is not removed.

Verification

• npx vitest --run src/client/client.test.ts — 119 passed
• npx vitest --run src/client/types.test.ts --coverage.enabled=false — 13 passed
• npx tsc -p tsconfig.spec.json --pretty false
• Prettier, ESLint, and git diff --check on the changed files

The author should do the following, if applicable

• Add tests
• Run focused tests and type checking
• Format and lint the changed files
• Add TSDoc/JSDoc — no public API added