fix(run): Shorten java command lines too long for the OS (#28) (#45)

Root cause: every java launch inlined the whole classpath into one -cp argument with no "Shorten command line", so long classpaths exceeded CreateProcessW's 32767-char limit (os error 206) before the JVM started.
Fix (IDEA's auto "Shorten command line"): ide-run rewrites a too-long java command line at spawn time — @argfile on JDK 9+ with ASCII paths, otherwise a MANIFEST pathing jar (percent-encoded file: URLs, 72-byte lines); temp files are removed when the process exits. Debug passes the same choice to java-debug's shortenCommandLine.
Siblings covered: Application/Spring Boot, test classpath, Kotlin main, explicit java -cp configs, profiler, PTY launches, Debug.
Verified: unit tests, pathing jar loaded by real JDK 8/11/25, ProcessManager integration test with 3000 entries on JDK 8/17/25. Not verified on Windows.

Claude-Session: https://claude.ai/code/session_01VUYsdXA2nkF5v6zsC93dpn

src/features/debugger/java.ts

@@ -86,6 +86,8 @@ export async function javaLaunchConfig(rc: RunConfig, root: string): Promise<Lau
       javaExec: resolved.command === "java" ? undefined : resolved.command,
       vmArgs: joinJavaArgs(parsed.vmArgs),
       args: joinJavaArgs(parsed.programArgs),
+      // java-debug spawns the JVM itself: it must shorten a classpath too long for the OS the same way Run does.
+      shortenCommandLine: info.shortenCommandLine ?? "none",
       console: "internalConsole",
       stopOnEntry: false,
     }),