Add generic type parameter to unitRef.get() calls with tokens

- Change unitRef.get(DATABASE_TOKEN) to unitRef.get<Database>(DATABASE_TOKEN)
- Improves type safety and consistency across all examples
- Follows the pattern from inversify-sinon example

Author: omermorad

inversify-jest/src/user.sociable.spec.ts

@@ -15,7 +15,7 @@ describe('User Service Unit Spec (Sociable Tests)', () => {
       .compile();
 
     userService = unit;
-    database = unitRef.get(DATABASE_TOKEN);
+    database = unitRef.get<Database>(DATABASE_TOKEN);
   });
 
   it('should validate and create user with real validation logic', async () => {

inversify-vitest/src/user.sociable.spec.ts

@@ -15,7 +15,7 @@ describe('User Service Unit Spec (Sociable Tests)', () => {
       .compile();
 
     userService = unit;
-    database = unitRef.get(DATABASE_TOKEN);
+    database = unitRef.get<Database>(DATABASE_TOKEN);
   });
 
   it('should validate and create user with real validation logic', async () => {

nestjs-jest/src/user.sociable.spec.ts

@@ -15,7 +15,7 @@ describe('User Service Unit Spec (Sociable Tests)', () => {
       .compile();
 
     userService = unit;
-    database = unitRef.get(DATABASE_TOKEN);
+    database = unitRef.get<Database>(DATABASE_TOKEN);
   });
 
   it('should validate and create user with real validation logic', async () => {

nestjs-sinon/src/user.sociable.spec.ts

@@ -24,7 +24,7 @@ describe('User Service Unit Spec (Sociable Tests)', () => {
       .compile();
 
     userService = unit;
-    database = unitRef.get(DATABASE_TOKEN);
+    database = unitRef.get<Database>(DATABASE_TOKEN);
   });
 
   it('should validate and create user with real validation logic', async () => {

nestjs-vitest/src/user.sociable.spec.ts

@@ -15,7 +15,7 @@ describe('User Service Unit Spec (Sociable Tests)', () => {
       .compile();
 
     userService = unit;
-    database = unitRef.get(DATABASE_TOKEN);
+    database = unitRef.get<Database>(DATABASE_TOKEN);
   });
 
   it('should validate and create user with real validation logic', async () => {