test: enhance E2E and integration testing infrastructure

- Add comprehensive TypeScript types to E2E test helpers
- Improve medication, auth, modal, and wait helper classes with proper typing
- Enhance test data with readonly type assertions for better immutability
- Update integration tests with better error handling and assertions
- Improve Playwright type definitions for better IDE support
- Add environment variable support to manual test scripts

types/playwright.d.ts

@@ -30,11 +30,11 @@ declare module '@playwright/test' {
     (name: string, fn: ({ page }: { page: Page }) => Promise<void>): void;
     describe: (name: string, fn: () => void) => void;
     beforeEach: (fn: ({ page }: { page: Page }) => Promise<void>) => void;
-    extend: (fixtures: any) => TestFunction;
+    extend: (fixtures: Record<string, unknown>) => TestFunction;
   }
 
   export interface ExpectFunction {
-    (actual: any): {
+    (actual: unknown): {
       toBeVisible(): Promise<void>;
       toContainText(text: string | string[]): Promise<void>;
       toHaveClass(pattern: RegExp): Promise<void>;
@@ -64,7 +64,7 @@ declare module '@playwright/test' {
     };
     projects?: Array<{
       name: string;
-      use: any;
+      use: Record<string, unknown>;
     }>;
     webServer?: {
       command: string;
@@ -77,6 +77,6 @@ declare module '@playwright/test' {
   export function defineConfig(config: Config): Config;
 
   export const devices: {
-    [key: string]: any;
+    [key: string]: Record<string, unknown>;
   };
 }