fix(http-specs): align route to "/dollar-sign" in main and mockapi (#10962)

The changelog entry for the dollar-sign query route fix was marked as
`internal` but should be `fix` — the change corrects a bug where the
TypeSpec `@route` path didn't match the mock API URI, causing SDK test
404s.

## Changes
- Updated `.chronus/changes/http-specs-fix-dollar-sign-route-*.md`:
`changeKind: internal` → `changeKind: fix`

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: weidongxu-microsoft <53292327+weidongxu-microsoft@users.noreply.github.com>

Author: Copilot

.chronus/changes/http-specs-fix-dollar-sign-route-2026-6-11-5-41-26.md

@@ -0,0 +1,7 @@
+---
+changeKind: fix
+packages:
+  - "@typespec/http-specs"
+---
+
+Fix the dollar-sign query scenario route to match the mock API.

packages/http-specs/spec-summary.md

@@ -1552,7 +1552,7 @@ Expect to handle a constant value for query and mock api returns nothing
 
 ### Parameters_Query_SpecialChar_dollarSign
 
-- Endpoint: `get /parameters/query/special-char/dollarSign`
+- Endpoint: `get /parameters/query/special-char/dollar-sign`
 
 Send a request with a dollar-sign prefixed`$filter` query parameter.
 

packages/http-specs/specs/parameters/query/main.tsp

@@ -33,7 +33,7 @@ interface SpecialChar {
     
     Expected response status code: 204
     """)
-  @route("/dollarSign")
+  @route("/dollar-sign")
   @get
   dollarSign(
     @query("$filter")