Fix integration tests to comply with password requirements

Update test passwords from 'password123' to 'Password123!' to meet security requirements (uppercase, lowercase, digit, special char).

Fix migrations test to match actual habit_entries schema (removed non-existent deleted_at column).

internal/infrastructure/http/auth_integration_test.go

@@ -12,7 +12,7 @@ func TestAuthFlow(t *testing.T) {
 	t.Run("Register new user", func(t *testing.T) {
 		reqBody := RegisterRequest{
 			Email:    "test@example.com",
-			Password: "password123",
+			Password: "Password123!",
 			Timezone: "UTC",
 		}
 
@@ -36,7 +36,7 @@ func TestAuthFlow(t *testing.T) {
 	t.Run("Register duplicate email", func(t *testing.T) {
 		reqBody := RegisterRequest{
 			Email:    "duplicate@example.com",
-			Password: "password123",
+			Password: "Password123!",
 			Timezone: "UTC",
 		}
 
@@ -52,7 +52,7 @@ func TestAuthFlow(t *testing.T) {
 	t.Run("Register with invalid email", func(t *testing.T) {
 		reqBody := RegisterRequest{
 			Email:    "invalid-email",
-			Password: "password123",
+			Password: "Password123!",
 			Timezone: "UTC",
 		}
 
@@ -80,14 +80,14 @@ func TestAuthFlow(t *testing.T) {
 	t.Run("Login with valid credentials", func(t *testing.T) {
 		registerBody := RegisterRequest{
 			Email:    "login@example.com",
-			Password: "password123",
+			Password: "Password123!",
 			Timezone: "UTC",
 		}
 		makeRequest(t, *ts.Router, "POST", "/api/v1/auth/register", registerBody, "")
 
 		loginBody := LoginRequest{
 			Email:    "login@example.com",
-			Password: "password123",
+			Password: "Password123!",
 		}
 
 		rr := makeRequest(t, *ts.Router, "POST", "/api/v1/auth/login", loginBody, "")
@@ -107,7 +107,7 @@ func TestAuthFlow(t *testing.T) {
 	t.Run("Login with invalid password", func(t *testing.T) {
 		registerBody := RegisterRequest{
 			Email:    "wrongpass@example.com",
-			Password: "password123",
+			Password: "Password123!",
 			Timezone: "UTC",
 		}
 		makeRequest(t, *ts.Router, "POST", "/api/v1/auth/register", registerBody, "")
@@ -127,7 +127,7 @@ func TestAuthFlow(t *testing.T) {
 	t.Run("Login with non-existent user", func(t *testing.T) {
 		loginBody := LoginRequest{
 			Email:    "nonexistent@example.com",
-			Password: "password123",
+			Password: "Password123!",
 		}
 
 		rr := makeRequest(t, *ts.Router, "POST", "/api/v1/auth/login", loginBody, "")