refactor: replace signIn callback with signIn event, adjust getUserByEmail in adapter to check provider (#1223)

* refactor: replace signIn callback with signIn event, adjust getUserByEmail in adapter to check provider

* test: adjusting tests for adapter and events

* docs: add comments for unknown auth provider

* fix: missing dayjs import

packages/auth/providers/test/basic-authorization.spec.ts

@@ -25,7 +25,6 @@ describe("authorizeWithBasicCredentials", () => {
     const result = await authorizeWithBasicCredentialsAsync(db, {
       name: "test",
       password: "test",
-      credentialType: "basic",
     });
 
     // Assert
@@ -47,7 +46,6 @@ describe("authorizeWithBasicCredentials", () => {
     const result = await authorizeWithBasicCredentialsAsync(db, {
       name: "test",
       password: "wrong",
-      credentialType: "basic",
     });
 
     // Assert
@@ -69,7 +67,6 @@ describe("authorizeWithBasicCredentials", () => {
     const result = await authorizeWithBasicCredentialsAsync(db, {
       name: "wrong",
       password: "test",
-      credentialType: "basic",
     });
 
     // Assert
@@ -88,7 +85,6 @@ describe("authorizeWithBasicCredentials", () => {
     const result = await authorizeWithBasicCredentialsAsync(db, {
       name: "test",
       password: "test",
-      credentialType: "basic",
     });
 
     // Assert