asdf

Squash the current repository state back into one baseline commit while
preserving the README reframing and repository contents.

Constraint: User explicitly requested a single squashed commit with subject "asdf"
Confidence: high
Scope-risk: broad
Reversibility: clean
Directive: This commit intentionally rewrites published history; coordinate before future force-pushes
Tested: git status clean; local history rewritten to one commit; force-pushed main to origin and instructkr
Not-tested: Fresh clone verification after push

src/utils/keyboardShortcuts.ts

@@ -0,0 +1,14 @@
+// Special characters that macOS Option+key produces, mapped to their
+// keybinding equivalents. Used to detect Option+key shortcuts on macOS
+// terminals that don't have "Option as Meta" enabled.
+export const MACOS_OPTION_SPECIAL_CHARS = {
+  '†': 'alt+t', // Option+T -> thinking toggle
+  π: 'alt+p', // Option+P -> model picker
+  ø: 'alt+o', // Option+O -> fast mode
+} as const satisfies Record<string, string>
+
+export function isMacosOptionChar(
+  char: string,
+): char is keyof typeof MACOS_OPTION_SPECIAL_CHARS {
+  return char in MACOS_OPTION_SPECIAL_CHARS
+}