feat: add Azure AD SSO integration

[amrsa1]

Summary:

• Backend: Azure AD SSO implementation (Services, Controllers, Middleware).
• Database: Schema updates for SSO users.
• Documentation: Setup guide and Frontend implementation guide.
• Configuration: Updated plugin arguments for Azure AD.

[amrsa1]

Looks like the main branch is already failing before my changes

`> appium-device-farm@11.2.6 integration-ios

mocha -r ts-node/register ./test/integration/ios/*.spec.ts --timeout 260000 --exit

Using Metadata Path: /Users/amr.salem/.cache/appium-device-farm

TSError: ⨯ Unable to compile TypeScript:
src/auth/services/user.service.ts:37:48 - error TS2345: Argument of type 'string | null' is not assignable to parameter of type 'string | Buffer'.
Type 'null' is not assignable to type 'string | Buffer'.

37 const hashedPassword = await bcrypt.hash(password, SALT_ROUNDS);
~~~~~~~~
src/auth/services/user.service.ts:44:11 - error TS2322: Type 'Promise & void' is not assignable to type 'string | null | undefined'.

44 password: hashedPassword,
~~~~~~~~

node_modules/.prisma/client/index.d.ts:16884:5
16884 password?: string | null
~~~~~~~~
The expected type comes from property 'password' which is declared here on type '(Without<UserCreateInput, UserUncheckedCreateInput> & UserUncheckedCreateInput) | (Without<...> & UserCreateInput)'
src/auth/services/user.service.ts:84:62 - error TS2345: Argument of type 'string | null' is not assignable to parameter of type 'string'.
Type 'null' is not assignable to type 'string'.

84 const isPasswordValid = await bcrypt.compare(password, user.password);
~~~~~~~~~~~~~
src/auth/services/user.service.ts:138:69 - error TS2345: Argument of type 'string | null' is not assignable to parameter of type 'string'.
Type 'null' is not assignable to type 'string'.

138 const isPasswordValid = await bcrypt.compare(currentPassword, user.password);`