fix: propagate keyUp and char keyboard events to JS listeners

dispatchKeyEvent only handled keyDown, returning early for keyUp,
rawKeyDown, and char types. This meant JS keyup and keypress
listeners never fired via CDP.

Now keyUp dispatches as "keyup" and char dispatches as "keypress".
rawKeyDown remains a no-op (Chrome-internal, not used for JS dispatch).

Fixes #2080
Ref #2043

src/cdp/domains/input.zig

@@ -52,17 +52,19 @@ fn dispatchKeyEvent(cmd: *CDP.Command) !void {
 
     try cmd.sendResult(null, .{});
 
-    // quickly ignore types we know we don't handle
-    switch (params.type) {
-        .keyUp, .rawKeyDown, .char => return,
-        .keyDown => {},
-    }
+    // rawKeyDown is a Chrome-internal event type not used for JS dispatch
+    if (params.type == .rawKeyDown) return;
 
     const bc = cmd.browser_context orelse return;
     const page = bc.session.currentPage() orelse return;
 
     const KeyboardEvent = @import("../../browser/webapi/event/KeyboardEvent.zig");
-    const keyboard_event = try KeyboardEvent.initTrusted(comptime .wrap("keydown"), .{
+    const keyboard_event = try KeyboardEvent.initTrusted(switch (params.type) {
+        .keyDown => comptime .wrap("keydown"),
+        .keyUp => comptime .wrap("keyup"),
+        .char => comptime .wrap("keypress"),
+        .rawKeyDown => unreachable,
+    }, .{
         .key = params.key,
         .code = params.code,
         .altKey = params.modifiers & 1 == 1,