refactor: apply Option B, remove heartbeat and register tools once on startup

dap-was-sys/build.gradle

@@ -0,0 +1,9 @@
+plugins {
+    // Spring Boot 3.5.11 version is managed by the root build.gradle.
+    id 'org.springframework.boot'
+}
+
+dependencies {
+    // Shared MCP, Glow integration, validation, logging, Lombok and MapStruct configuration.
+    implementation project(':dap-was-lib')
+}