fix(cli): Ctrl+T leak, React key dupes, clipboard claim, version display

- #192: Suppress leaked character when Ctrl+T/L/N/K fires in useInput by
  setting a ctrlJustFired ref and rejecting the next onChange call in the
  InputBar onChange wrapper
- #193: CommandAutocomplete uses composite key `${cmd.execution}-${cmd.name}`
  to prevent duplicate key warnings; CommandRegistry.getAll() deduplicates
  gateway commands that share a name with local commands
- #194: /provider login message no longer claims '(URL copied to clipboard)'
  since clipboard access is unavailable server-side
- #199: cli.ts reads version from package.json via createRequire and passes
  it as a prop to TuiApp which forwards it to TopBar instead of hardcoded 0.0.0

Fixes #192, #193, #194, #199

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/gateway/src/commands/command-executor.service.ts

@@ -291,7 +291,7 @@ export class CommandExecutorService {
         return {
           command: 'provider',
           success: true,
-          message: `Open this URL to authenticate with ${providerName}:\n${loginUrl}\n\n(URL copied to clipboard)`,
+          message: `Open this URL to authenticate with ${providerName}:\n${loginUrl}`,
           conversationId,
           data: { loginUrl, pollToken, provider: providerName },
         };