feat(cli): default to cloud run when invoked with no subcommand

Like `vercel` defaults to deploy, `crayon` now defaults to `cloud run`
when no arguments are given. Help is still available via `crayon --help`.

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

Author: cevian

packages/core/src/cli/index.ts

@@ -700,4 +700,9 @@ program
     console.log(pc.green("Logged out. Credentials removed from ~/.crayon/credentials"));
   });
 
+// Default to `cloud run` when invoked with no subcommand
+if (process.argv.length <= 2) {
+  process.argv.push("cloud", "run");
+}
+
 program.parse();

scripts/install.sh

@@ -184,16 +184,16 @@ main() {
   printf "${GREEN}${BOLD}  Installation complete!${RESET}\n\n" >&2
   printf "${BOLD}  To get started, run:${RESET}\n\n" >&2
   if $PATH_UPDATED; then
-    printf "${CYAN}    export PATH=\"\${HOME}/.local/bin:\${PATH}\"; crayon cloud run${RESET}\n\n" >&2
+    printf "${CYAN}    export PATH=\"\${HOME}/.local/bin:\${PATH}\"; crayon${RESET}\n\n" >&2
   else
-    printf "${CYAN}    crayon cloud run${RESET}\n\n" >&2
+    printf "${CYAN}    crayon${RESET}\n\n" >&2
   fi
 
   if [ -t 0 ]; then
     printf "${BOLD}  Launch now? [Y/n]${RESET} " >&2
     read -r answer
     case "$answer" in
-      [yY]*|"") exec "${HOME}/.local/bin/crayon" cloud run ;;
+      [yY]*|"") exec "${HOME}/.local/bin/crayon" ;;
     esac
   fi
 }