fix(lint): clear 7 false-positive lint warnings

vp run check:lint reported 7 warnings, all false positives for a terminal UI
library:

- no-control-regex (×6): parsing keyboard escape sequences and stripping ANSI
  inherently requires regexes matching control chars (ESC, BEL). Disable the
  rule library-wide in vite.config.ts — it flags every such pattern and we
  already use \x1b/\u escapes (its own suggested form). Also drop the now-
  redundant (and misplaced — it sat one line above the regex) inline disable in
  sanitize-ansi.test.ts.

- no-misused-spread (×1) at parse-keypress.ts:500: `[...s]` on a terminal
  escape sequence (ASCII control chars + digits, never user text), so the
  emoji-splitting concern doesn't apply. Suppressed in place with a comment
  explaining why, keeping the rule active elsewhere.

check:lint now reports 0 warnings, 0 errors.

packages/runtime/src/io/parse-keypress.ts

@@ -497,6 +497,11 @@ export function parseKeypress(s: Uint8Array | string = ""): Keypress {
     key.meta = true;
     key.shift = /^[A-Z]$/.test(parts[1]!);
   } else if ((parts = fnKeyRe.exec(s))) {
+    // `s` here is a terminal escape sequence (ASCII control chars + digits,
+    // e.g. "\x1b[1;5A"), never user text, so it has no multi-codepoint
+    // graphemes. Code-point spread is exactly what we want; the emoji-splitting
+    // concern behind no-misused-spread does not apply.
+    // eslint-disable-next-line no-misused-spread
     const segs = [...s];
 
     if (segs[0] === "" && segs[1] === "") {

packages/runtime/src/paint/sanitize-ansi.test.ts

@@ -3,7 +3,6 @@ import { sanitizeAnsi } from "./sanitize-ansi.ts";
 
 // Minimal ANSI-stripping helper for test assertions (avoids strip-ansi dep).
 function stripAnsi(s: string): string {
-  // eslint-disable-next-line no-control-regex
   return s.replace(
     /[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:[:;][0-9]{0,4})*)?[0-9A-ORZcf-nqry=><~]|[\u001b\u009d]\].*?(?:\u0007|\u001b\\|\u009c)|[\u001b\u0098][\s\S]*?(?:\u0007|\u001b\\|\u009c)|[\u0080-\u009f]/g,
     "",

vite.config.ts

@@ -5,7 +5,18 @@ export default defineConfig({
     "*": "vp check --fix",
   },
   fmt: {},
-  lint: { options: { typeAware: true, typeCheck: false } },
+  lint: {
+    options: { typeAware: true, typeCheck: false },
+    rules: {
+      // This is a terminal UI library: parsing keyboard escape sequences and
+      // stripping ANSI requires regexes that match control characters (ESC,
+      // BEL, etc.) by design. no-control-regex flags every such pattern as a
+      // false positive across the codebase, so disable it library-wide. We
+      // already write them as \x1b /  unicode escapes (the rule's own
+      // suggested form), not raw bytes.
+      "no-control-regex": "off",
+    },
+  },
   run: {
     cache: false,
     // `ci` is the parallel verification graph used by .github/workflows/ci.yml.