fix(run): Give forked and debugged JVMs the console encoding and render colours in the Debug console (#220)

Only the JVM the IDE launched directly was told the console's output encoding, so forked JVMs (spring-boot:run, Surefire, bootRun, Gradle workers), debugger-launched JVMs and Build-window builds wrote GBK on Windows while the console decoded UTF-8. Every JVM the IDE starts on Windows now gets the console encoding: java gets -Dfile.encoding alongside the std* properties, build tools and their forks get JAVA_TOOL_OPTIONS (std* only) with the IDE's own 'Picked up JAVA_TOOL_OPTIONS' line filtered, shell command lines are recognised by their first word, and java-debug launches get the matching vmArgs. The Debug console now shares the Run console's ANSI parser. Encoding helpers moved to ide-core::output_encoding.

Not verified on a Windows machine.

Fixes #180
Fixes #182

Claude-Session: https://claude.ai/code/session_01Dq6jQQn8ZhRfkkyj3PRutA

src/features/debugger/__tests__/console.test.ts

@@ -0,0 +1,46 @@
+import { afterEach, describe, expect, it } from "vitest";
+import { appendConsole, clearConsole, useDebug } from "../state";
+
+const lines = (session: number) => useDebug.getState().console[session] ?? [];
+
+afterEach(() => useDebug.setState({ console: {} }));
+
+describe("debug console", () => {
+  it("renders ANSI colours instead of showing the escapes", () => {
+    // A logback pattern whose colour spans the line break (`%boldMagenta(%logger{36}%n)`), with CRLF.
+    appendConsole(
+      5,
+      "stdout",
+      "\x1b[36m2026-10-29 09:13:55\x1b[0;39m \x1b[32m[main]\x1b[0;39m \x1b[1;35mo.d.c.p.l.MessageTopicListener\r\n",
+    );
+    appendConsole(5, "stdout", "\x1b[0;39m - 初始化消息主题订阅监听器成功\r\n");
+    const [first, second] = lines(5);
+    expect(first!.text).toBe("2026-10-29 09:13:55 [main] o.d.c.p.l.MessageTopicListener\n");
+    expect(first!.spans[0]).toEqual({ text: "2026-10-29 09:13:55", fg: "var(--ansi-cyan)" });
+    expect(first!.spans).toContainEqual({ text: "[main]", fg: "var(--ansi-green)" });
+    expect(first!.spans.at(-1)).toEqual({
+      text: "o.d.c.p.l.MessageTopicListener\n",
+      fg: "var(--ansi-magenta)",
+      bold: true,
+    });
+    expect(second!.text).toBe(" - 初始化消息主题订阅监听器成功\n");
+    expect(second!.spans).toEqual([{ text: " - 初始化消息主题订阅监听器成功\n" }]);
+    expect(lines(5).some((l) => l.text.includes("\x1b"))).toBe(false);
+  });
+
+  it("keeps a colour across output events and an escape split between them", () => {
+    appendConsole(6, "stderr", "\x1b[3");
+    appendConsole(6, "stderr", "1mred ");
+    appendConsole(6, "stderr", "still\x1b[0m plain\n");
+    const [line] = lines(6);
+    expect(line!.text).toBe("red still plain\n");
+    expect(line!.spans).toEqual([{ text: "red still", fg: "var(--ansi-red)" }, { text: " plain\n" }]);
+    // Streams of other categories and sessions have their own state.
+    appendConsole(6, "stdout", "\x1b[32mgreen");
+    appendConsole(7, "stdout", "plain\n");
+    expect(lines(7)[0]!.spans).toEqual([{ text: "plain\n" }]);
+    clearConsole(6);
+    appendConsole(6, "stdout", "after clear\n");
+    expect(lines(6)[0]!.spans).toEqual([{ text: "after clear\n" }]);
+  });
+});