Improve launcher injection and hook reliability

Find Fabric through the render thread's class loader and make bytecode transformations safer for launcher-provided class definitions. Improve hook reporting, process-picker refresh behavior, and self-destruct cleanup; document Dawn and Lunar 1.21.11 setup.

injector/crates/injector/src/main.rs

@@ -221,14 +221,12 @@ fn pick_process() -> Option<u32> {
     let mut selected = 0usize;
     let mut processes = platform::java_processes();
     let mut last_refresh = Instant::now();
+    draw(&processes, selected);
     loop {
-        if selected >= processes.len() {
-            selected = processes.len().saturating_sub(1);
-        }
-        draw(&processes, selected);
         let deadline = Instant::now() + Duration::from_millis(50);
         while Instant::now() < deadline {
             if let Some(key) = platform::poll_key() {
+                let previous = selected;
                 match key {
                     platform::Key::Up => selected = selected.saturating_sub(1),
                     platform::Key::Down => selected = (selected + 1).min(processes.len().saturating_sub(1)),
@@ -239,12 +237,19 @@ fn pick_process() -> Option<u32> {
                     }
                     platform::Key::Escape => return None,
                 }
-                draw(&processes, selected);
+                if selected != previous {
+                    draw(&processes, selected);
+                }
             }
             std::thread::sleep(Duration::from_millis(10));
         }
         if last_refresh.elapsed() >= Duration::from_millis(750) {
-            processes = platform::java_processes();
+            let refreshed = platform::java_processes();
+            if refreshed != processes {
+                processes = refreshed;
+                selected = selected.min(processes.len().saturating_sub(1));
+                draw(&processes, selected);
+            }
             last_refresh = Instant::now();
         }
     }

injector/crates/injector/src/platform/mod.rs

@@ -3,6 +3,7 @@
 use std::path::PathBuf;
 
 /// A running Minecraft JVM shown in the picker.
+#[derive(PartialEq)]
 pub struct JavaProcess {
     pub pid: u32,
     pub title: String,