docs(installer): clearer --help strings for --pm/--preset/--config/--layout

Author: ynamite

src/index.ts

@@ -26,13 +26,13 @@ program
   .option("--skip-db", "Skip database creation")
   .option("--skip-addons", "Skip addon installation")
   .option("--skip-git", "Don't initialize a git repo")
-  .option("--pm <manager>", "Package manager: yarn | npm | pnpm", "pnpm")
-  .option("--preset <name>", "Use a preset (default, massif, custom, or path to preset.json)")
-  .option("--config <path>", "Path to a viterex config file (skip prompts)")
+  .option("--pm <manager>", "Package manager for JS deps after Redaxo install: pnpm | yarn | npm", "pnpm")
+  .option("--preset <name>", "Preset that drives addon selection, layout, seed.sql and template files. Built-in id (default, massif), or path to a preset directory or preset.json")
+  .option("--config <path>", "Path to a previously-generated viterex.json (or a directory containing one). Pins all answers and skips prompts. Different from --preset, which only pre-fills some")
   .option("--resume", "Resume a previously failed run, skipping completed tasks")
   .option("--dry-run", "Log each task without executing")
   .option("--verbose", "Pipe task stdout/stderr to the terminal")
-  .option("--layout <m|c|ct>", "Directory layout: modern | classic | classic+theme")
+  .option("--layout <m|c|ct>", "Directory layout: modern (ydeploy, recommended) | classic (Redaxo defaults) | classic+theme (FriendsOfREDAXO/theme)")
   .option("--fresh", "Force fresh-install pipeline even when an existing Redaxo install is detected")
   .option("--force-push", "Allow force-push when the git remote already has commits")
   .option("--with-tower", "Open Tower (macOS) after a successful run")