docs: update README and social preview for Codegen Initializr

- Rebranded base package to io.github.bsayli.codegen.initializr
- Updated README.md with revised usage examples, architecture notes, and badges
- Refreshed social-preview HTML to include updated branding and sections

Author: bsayli

README.md

@@ -1,5 +1,6 @@
 # Codegen Spring Boot Initializr
 
+![Build](https://github.com/bsayli/spring-boot-openapi-generics-clients/actions/workflows/build.yml/badge.svg)
 ![Java](https://img.shields.io/badge/Java-21-red)
 ![Spring Boot](https://img.shields.io/badge/Spring%20Boot-3.5-green)
 ![Maven](https://img.shields.io/badge/Maven-3.9-blue)
@@ -11,9 +12,8 @@
   <em>Social preview banner for GitHub and sharing</em>
 </p>
 
-**A customizable project generator for Spring Boot**.
-Quickly scaffold a new Java application with predefined structure, configuration, and tests — no repetitive setup
-required.
+**A customizable project generator for Spring Boot.**
+Quickly scaffold a new Java application with predefined structure, configuration, and tests — no repetitive setup required.
 
 ---
 
@@ -37,9 +37,9 @@ Bootstrapping a new Spring Boot project often involves:
 This project automates all of that:
 
 * Generates a **ready-to-run Spring Boot project** with Maven
-* Adds **`.gitignore`, `application.yml`, starter class, and test class**
+* Adds `.gitignore`, `application.yml`, starter class, and test class
 * Supports **custom package and project naming**
-* Ships with **CLI runner** for easy one-liner project generation
+* Ships with **CLI runner** for one-liner project generation
 * Produces a **zip archive** you can immediately extract and use
 
 ---
@@ -66,28 +66,25 @@ mvn spring-boot:run -Dspring-boot.run.profiles=cli \
   -Dspring-boot.run.arguments="--groupId=com.example --artifactId=demo-app --packageName=com.example.demo --outputDir=./target/generated-projects --overwrite=true"
 ```
 
-✅ This generates a new project as a zip archive under the specified output directory (default:
-`./target/generated-projects`):
+✅ This generates a new project as a zip archive under the specified output directory (default: `./target/generated-projects`):
 
 ```
 [OK] Project archive generated at: /.../target/generated-projects/demo-app/demo-app.zip
 ```
 
 ℹ️ Tips:
 
-* If you don’t provide `--outputDir`, the project will be created under the default path `target/generated-projects`
-  inside the current working directory.
+* If you don’t provide `--outputDir`, the project will be created under the default path `target/generated-projects`.
 * If the target directory already exists:
 
-    * By default, the generator will **fail-fast** with a clear error.
-    * Add `--overwrite=true` to **delete and regenerate** the project in the same directory.
+  * By default, the generator will **fail-fast** with a clear error.
+  * Add `--overwrite=true` to **delete and regenerate** the project in the same directory.
 
 ---
 
 ## 🧑‍💻 Programmatic Usage
 
 ```java
-
 import java.nio.file.Path;
 import java.util.List;
 
@@ -102,36 +99,32 @@ import io.github.bsayli.codegen.initializr.projectgeneration.service.ProjectGene
 // Assume ProjectGenerationService is injected or obtained from Spring context
 ProjectGenerationService service = /* @Autowired or ApplicationContext.getBean(...) */;
 
-        var depWeb =
-                new Dependency.DependencyBuilder()
-                        .groupId("org.springframework.boot")
-                        .artifactId("spring-boot-starter-web")
-                        .build();
-
-        var depTest =
-                new Dependency.DependencyBuilder()
-                        .groupId("org.springframework.boot")
-                        .artifactId("spring-boot-starter-test")
-                        .scope("test")
-                        .build();
-
-        var metadata = new SpringBootJavaProjectMetadataBuilder()
-                .springBootVersion("3.5.5")
-                .javaVersion("21")
-                .groupId("com.example")
-                .artifactId("demo-app")
-                .name("demo-app")
-                .description("Generated by codegen-initializr-core")
-                .packageName("com.example.demo")
-                .dependencies(List.of(depWeb, depTest))
-                .build();
-
-        var type = new ProjectType(Framework.SPRING_BOOT, BuildTool.MAVEN, Language.JAVA);
-
-        Path zip = service.generateProject(type, metadata);
-System.out.
-
-        println("Archive generated at: "+zip.toAbsolutePath());
+var depWeb = new Dependency.DependencyBuilder()
+    .groupId("org.springframework.boot")
+    .artifactId("spring-boot-starter-web")
+    .build();
+
+var depTest = new Dependency.DependencyBuilder()
+    .groupId("org.springframework.boot")
+    .artifactId("spring-boot-starter-test")
+    .scope("test")
+    .build();
+
+var metadata = new SpringBootJavaProjectMetadataBuilder()
+    .springBootVersion("3.5.5")
+    .javaVersion("21")
+    .groupId("com.example")
+    .artifactId("demo-app")
+    .name("demo-app")
+    .description("Generated by codegen-initializr-core")
+    .packageName("com.example.demo")
+    .dependencies(List.of(depWeb, depTest))
+    .build();
+
+var type = new ProjectType(Framework.SPRING_BOOT, BuildTool.MAVEN, Language.JAVA);
+
+Path zip = service.generateProject(type, metadata);
+System.out.println("Archive generated at: " + zip.toAbsolutePath());
 ```
 
 ---
@@ -184,16 +177,14 @@ Run the test suite:
 mvn test
 ```
 
-The generator components (`pom.xml`, `.gitignore`, `application.yml`, layout, archiver) are fully covered with unit &
-integration tests.
+The generator components (`pom.xml`, `.gitignore`, `application.yml`, layout, archiver) are fully covered with unit & integration tests.
 
 ---
 
 ## 📖 Related Work
 
 This tool is inspired by the need to automate repetitive **Spring Boot project initialization** tasks.
-It works well alongside other repositories
-like [spring-boot-openapi-generics-clients](https://github.com/bsayli/spring-boot-openapi-generics-clients).
+It works well alongside other repositories like [spring-boot-openapi-generics-clients](https://github.com/bsayli/spring-boot-openapi-generics-clients).
 
 ---