Run prettier across the repo, exclude the lockfile from it

Prettier had never been run in --check mode here before, so this had
drifted across most files (markdown tables, long option() chains,
line wrapping). Purely formatting, no logic changes - needed so a CI
format:check gate can actually pass. Adds .prettierignore for
pnpm-lock.yaml specifically: prettier's YAML formatter rewrites every
quoted key (single -> double quotes) producing an ~8700-line diff of
pure noise on a file pnpm itself owns the formatting of.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/cli/commands/scripts.ts

@@ -52,7 +52,9 @@ export async function scriptsShowCommand(
   if (!script) {
     console.error(`No script '${scriptId}' configured.`);
     if (scripts.length > 0) {
-      console.error(`Available scripts: ${scripts.map((s) => s.id).join(", ")}`);
+      console.error(
+        `Available scripts: ${scripts.map((s) => s.id).join(", ")}`,
+      );
     }
     process.exitCode = 1;
     return;
@@ -60,7 +62,9 @@ export async function scriptsShowCommand(
 
   console.log(script.name);
   if (script.description) console.log(script.description);
-  console.log(`\ncommand: ${script.command} ${script.args.join(" ")}`.trimEnd());
+  console.log(
+    `\ncommand: ${script.command} ${script.args.join(" ")}`.trimEnd(),
+  );
 
   if (script.variables.length === 0) {
     console.log("\nThis script takes no parameters.");