feat(api): major refactor from TCP socket to HTTP REST via Spring Boot

This commit introduces a large-scale refactor that replaces the existing TCP-based API with a Spring Boot-powered HTTP REST architecture. Due to the size and scope of this change, only essential structural notes are included below.

High-level changes:
- Replaced TCP-based communication with RESTful endpoints
- Introduced Spring Boot for API handling and configuration
- Refactored internal core logic to support REST architecture

New/Updated API components:
- `APIApplication.java`: Main Spring Boot entry point
- `MessageController.java`: Handles LLM-related queries
- `ToolController.java`: Handles adding/removing tools
- `NewToolRequest.java` / `NewToolResponse.java`: Data models for tool addition
- `NewQueryResponseHook.java`: Webhook handler for LLM query results
- `WebhookError.java`: Model for reporting webhook errors
- `EnableIfNotDisplay.java`: Conditional configuration for TTY context
- Other supporting classes (e.g., `ToolArgument`, `ToolRequest`)

Core changes:
- `Core.java`: Removed deprecated `addFunctionTool`, added `removeTool`
- `LaunchOptions.java`: Added `notDisplay` flag for headless operation
- `OllamaObject.java`: Implements tool removal logic

Launcher/display changes:
- `Launcher.java`: Starts `APIApplication` if not in TTY mode
- `Display.java`: Integrates REST API contextually with TTY display

NOTE: Several classes are included but not yet fully utilized; these are placeholders for upcoming features (e.g., `MessageResponse`, `ToolRequest`).

BREAKING CHANGE: This refactors removes all TCP-based API code and replaces it with HTTP REST using Spring Boot. Any clients or modules depending on the old TCP interface will need to be updated.

launcher/build.gradle

@@ -1,5 +1,8 @@
 plugins {
     id 'java'
+
+    id 'org.springframework.boot' version '3.2.2'
+    id 'io.spring.dependency-management' version '1.1.4'
 }
 
 group = 'me.zacharias'
@@ -9,10 +12,20 @@ dependencies {
     implementation project(":Display")
     implementation project(":API")
     implementation project(":Core")
+
+    afterEvaluate {
+        boolean hasAPIDependency = configurations.implementation.dependencies.any { it.name.contains('API') }
+
+        if (hasAPIDependency) {
+            dependencies.add("implementation", 'org.springframework.boot:spring-boot-starter-web')
+            dependencies.add("implementation", 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.1.0')
+            dependencies.add("testImplementation", 'org.springframework.boot:spring-boot-starter-test')
+        }
+    }
 }
 
 jar{
     manifest {
         attributes 'Main-Class': 'me.zacharias.chat.launcher.Launcher'
     }
-}
+}

launcher/src/main/java/me/zacharias/chat/launcher/Launcher.java

@@ -1,9 +1,12 @@
 package me.zacharias.chat.launcher;
 
-import me.zacharias.chat.api.server.APIServer;
+//import me.zacharias.chat.api.APIApplication;
+import me.zacharias.chat.api.APIApplication;
 import me.zacharias.chat.core.LaunchOptions;
 import me.zacharias.chat.display.Display;
 
+import java.lang.reflect.Method;
+
 /**
  * The launcher for AI_chat.<br>
  * This is the main class of the application and is responsible for handling the command line arguments.
@@ -49,7 +52,7 @@ public class Launcher {
                 }
                 case "--help", "-h" -> {
                     System.out.println("""
-                            Launch options for AI_chat
+                            Launch options for NeuroChat:
                             -h  --help          Provides this help message
                             -s  --server        Starts the application as API server
                             -p  --port          Provides the port number that the API server should use, defaults to 39075
@@ -84,9 +87,16 @@ public class Launcher {
 
         if (options.isServerMode()) {
             System.out.println("Starting in API mode...");
-            new APIServer();
+            try {
+                APIApplication.start();
+            }catch (Exception e)
+            {
+                System.out.println("Failed to start API server: " + e.getMessage());
+                e.printStackTrace();
+            }
         } else {
             System.out.println("Starting in Display mode...");
+            options.setNotDisplay(false);
             new Display();
         }
     }