Fix lost responses and close handling; publish to Gitea as 0.2.0

- Register pending requests before sending so fast responses aren't lost
- Fail pending requests with SessionClosedException when the connection
  closes or errors, and add onClose(), isOpen() and a request overload
  with a timeout
- Serialize text sends: java.net.http.WebSocket allows only one
  outstanding send, so concurrent requests could throw
- Reassemble text messages delivered in parts before parsing
- Complete error responses with SessionErrorException carrying the payload
- Answer requests for unknown methods with an error response
- Fix SessionResult.error() producing success responses
- Fix close() using invalid close code 0; send 1000
- Publish as dev.selimaj:session-java to the Gitea package registry;
  make Jackson an api dependency and drop unused Tyrus/Jakarta deps
- Replace the empty test with 9 tests against an in-process server

Fixes #1

Co-Authored-By: Claude Opus 5.5 <[email protected]>

build.gradle

@@ -3,13 +3,14 @@ plugins {
     id 'maven-publish'
 }
 
-group = "dev.selimaj.session"
-version = "0.1.3"
+group = "dev.selimaj"
+version = "0.2.0"
 
 java {
     toolchain {
         languageVersion = JavaLanguageVersion.of(17)
     }
+    withSourcesJar()
 }
 
 repositories {
@@ -17,18 +18,15 @@ repositories {
 }
 
 dependencies {
-    // JSON parsing and serialization
-    implementation 'com.fasterxml.jackson.core:jackson-databind:2.17.0'
-    implementation 'com.fasterxml.jackson.core:jackson-annotations:2.17.0'
-    implementation 'com.fasterxml.jackson.core:jackson-core:2.17.0'
+    // JSON parsing and serialization; JsonNode is part of the public API.
+    api 'com.fasterxml.jackson.core:jackson-databind:2.17.0'
+    api 'com.fasterxml.jackson.core:jackson-annotations:2.17.0'
+    api 'com.fasterxml.jackson.core:jackson-core:2.17.0'
 
-    // WebSocket API
-    implementation 'jakarta.websocket:jakarta.websocket-api:2.1.1'
-    // WebSocket client runtime
-    implementation 'org.glassfish.tyrus:tyrus-client:2.1.2'
-
-    // For testing
+    // For testing: a real WebSocket server for the client to talk to.
     testImplementation 'org.junit.jupiter:junit-jupiter:5.10.0'
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+    testImplementation 'org.java-websocket:Java-WebSocket:1.6.0'
 }
 
 test {
@@ -38,7 +36,24 @@ test {
 publishing {
     publications {
         mavenJava(MavenPublication) {
+            artifactId = 'session-java'
             from components.java
         }
     }
-}
+
+    repositories {
+        // Gitea package registry. Publish with a token that has package:write:
+        //   GITEA_TOKEN=... ./gradlew publish
+        maven {
+            name = 'Gitea'
+            url = uri('https://git.selimaj.dev/api/packages/selimaj-dev/maven')
+            credentials(HttpHeaderCredentials) {
+                name = 'Authorization'
+                value = "token ${findProperty('giteaToken') ?: System.getenv('GITEA_TOKEN') ?: ''}"
+            }
+            authentication {
+                header(HttpHeaderAuthentication)
+            }
+        }
+    }
+}