revert: remove unnecessary test file TS fixes

Upstream excluded src/test from tsc (e609a28), making these fixes
unnecessary. Reverting to match upstream.

Author: iprivit

frontend/src/test/config.test.ts

@@ -9,18 +9,6 @@ import { resolve } from "path"
  * Helper function to parse JSONC (JSON with comments)
  * Strips single-line and multi-line comments before parsing
  */
-interface TSConfig {
-  compilerOptions: {
-    target: string
-    moduleResolution: string
-    noEmit: boolean
-    strict: boolean
-    paths: Record<string, string[]>
-    jsx: string
-  }
-  include: string[]
-}
-
 function parseJSONC(content: string): Record<string, unknown> {
   // Remove single-line comments
   let cleaned = content.replace(/\/\/.*$/gm, "")
@@ -68,38 +56,38 @@ describe("Configuration Verification Tests", () => {
 
   describe("tsconfig.json", () => {
     it("should have correct target set to ES2020", () => {
-      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8")) as unknown as TSConfig
+      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8"))
       expect(tsconfig.compilerOptions.target).toBe("ES2020")
     })
 
     it("should have bundler module resolution", () => {
-      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8")) as unknown as TSConfig
+      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8"))
       expect(tsconfig.compilerOptions.moduleResolution).toBe("bundler")
     })
 
     it("should have noEmit set to true", () => {
-      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8")) as unknown as TSConfig
+      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8"))
       expect(tsconfig.compilerOptions.noEmit).toBe(true)
     })
 
     it("should have strict mode enabled", () => {
-      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8")) as unknown as TSConfig
+      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8"))
       expect(tsconfig.compilerOptions.strict).toBe(true)
     })
 
     it('should have path alias "@/*" configured', () => {
-      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8")) as unknown as TSConfig
+      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8"))
       expect(tsconfig.compilerOptions.paths).toHaveProperty("@/*")
       expect(tsconfig.compilerOptions.paths["@/*"]).toEqual(["./src/*"])
     })
 
     it("should have jsx set to react-jsx", () => {
-      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8")) as unknown as TSConfig
+      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8"))
       expect(tsconfig.compilerOptions.jsx).toBe("react-jsx")
     })
 
     it("should include src directory", () => {
-      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8")) as unknown as TSConfig
+      const tsconfig = parseJSONC(readFileSync(resolve(__dirname, "../../tsconfig.json"), "utf-8"))
       expect(tsconfig.include).toContain("src")
     })
   })

frontend/src/test/property-auth-routing.test.tsx

@@ -11,7 +11,6 @@
 import { describe, it, expect, vi, afterEach } from "vitest"
 import * as fc from "fast-check"
 import { render, screen, cleanup } from "@testing-library/react"
-import type { User } from "oidc-client-ts"
 import ChatPage from "@/routes/ChatPage"
 
 // Mock the useAuth hook
@@ -95,7 +94,7 @@ describe("Authentication State Routing", () => {
               access_token: "test-token",
               id_token: "test-id-token",
               profile: { sub: "test-user-id" },
-            } as unknown as User,
+            } as unknown,
             isLoading: false,
             error: undefined,
             token: "test-id-token",
@@ -136,7 +135,7 @@ describe("Authentication State Routing", () => {
                   access_token: "test-token",
                   id_token: "test-id-token",
                   profile: { sub: "test-user-id" },
-                } as unknown as User)
+                } as unknown)
               : null,
             isLoading: false,
             error: undefined,
@@ -177,7 +176,7 @@ describe("Authentication State Routing", () => {
             access_token: "test-token",
             id_token: "test-id-token",
             profile: { sub: "test-user-id" },
-          } as unknown as User,
+          } as unknown,
           isLoading: false,
           error: undefined,
           token: "test-id-token",