refactor: 删除部分多余的代码和注释

web/src/lib/charToHid.ts

@@ -1,5 +1,3 @@
-// Character to HID usage mapping for text paste functionality.
-// The table follows US QWERTY layout semantics.
 
 import { type CanonicalKey } from '@/types/generated'
 import { keys } from '@/lib/keyboardMappings'
@@ -10,7 +8,6 @@ export interface CharKeyMapping {
 }
 
 const charToKeyMap: Record<string, CharKeyMapping> = {
-  // Lowercase letters
   a: { key: keys.KeyA, shift: false },
   b: { key: keys.KeyB, shift: false },
   c: { key: keys.KeyC, shift: false },
@@ -38,7 +35,6 @@ const charToKeyMap: Record<string, CharKeyMapping> = {
   y: { key: keys.KeyY, shift: false },
   z: { key: keys.KeyZ, shift: false },
 
-  // Uppercase letters
   A: { key: keys.KeyA, shift: true },
   B: { key: keys.KeyB, shift: true },
   C: { key: keys.KeyC, shift: true },
@@ -66,7 +62,6 @@ const charToKeyMap: Record<string, CharKeyMapping> = {
   Y: { key: keys.KeyY, shift: true },
   Z: { key: keys.KeyZ, shift: true },
 
-  // Number row
   '0': { key: keys.Digit0, shift: false },
   '1': { key: keys.Digit1, shift: false },
   '2': { key: keys.Digit2, shift: false },
@@ -78,7 +73,6 @@ const charToKeyMap: Record<string, CharKeyMapping> = {
   '8': { key: keys.Digit8, shift: false },
   '9': { key: keys.Digit9, shift: false },
 
-  // Shifted number row symbols
   ')': { key: keys.Digit0, shift: true },
   '!': { key: keys.Digit1, shift: true },
   '@': { key: keys.Digit2, shift: true },
@@ -90,7 +84,6 @@ const charToKeyMap: Record<string, CharKeyMapping> = {
   '*': { key: keys.Digit8, shift: true },
   '(': { key: keys.Digit9, shift: true },
 
-  // Punctuation and symbols
   '-': { key: keys.Minus, shift: false },
   '=': { key: keys.Equal, shift: false },
   '[': { key: keys.BracketLeft, shift: false },
@@ -103,7 +96,6 @@ const charToKeyMap: Record<string, CharKeyMapping> = {
   '.': { key: keys.Period, shift: false },
   '/': { key: keys.Slash, shift: false },
 
-  // Shifted punctuation and symbols
   _: { key: keys.Minus, shift: true },
   '+': { key: keys.Equal, shift: true },
   '{': { key: keys.BracketLeft, shift: true },
@@ -116,7 +108,6 @@ const charToKeyMap: Record<string, CharKeyMapping> = {
   '>': { key: keys.Period, shift: true },
   '?': { key: keys.Slash, shift: true },
 
-  // Whitespace and control
   ' ': { key: keys.Space, shift: false },
   '\t': { key: keys.Tab, shift: false },
   '\n': { key: keys.Enter, shift: false },

web/src/lib/keyboardLayouts.ts

@@ -1,4 +1,3 @@
-// Virtual keyboard layout data shared by the on-screen keyboard.
 
 export type KeyboardOsType = 'windows' | 'mac' | 'android'
 

web/src/lib/keyboardMappings.ts

@@ -122,7 +122,6 @@ export const keys = {
 
 export type KeyName = keyof typeof keys
 
-// Consumer Control Usage codes (for multimedia keys)
 export const consumerKeys = {
   PlayPause: 0x00cd,
   Stop: 0x00b7,

web/src/lib/utils.ts

@@ -15,8 +15,6 @@ export function generateUUID(): string {
     return crypto.randomUUID()
   }
 
-  // Fallback: generate UUID v4 manually
-  // Format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
   return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
     const r = (Math.random() * 16) | 0
     const v = c === 'x' ? r : (r & 0x3) | 0x8