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/lib/systemd.ts

@@ -22,7 +22,8 @@ export function renderUnit(opts: UnitOptions): string {
     .map((part) => (part.includes(" ") ? `"${part}"` : part))
     .join(" ");
 
-  const wantedBy = opts.scope === "user" ? "default.target" : "multi-user.target";
+  const wantedBy =
+    opts.scope === "user" ? "default.target" : "multi-user.target";
 
   return `[Unit]
 Description=TriggerShell - self-hosted script runner
@@ -42,7 +43,13 @@ WantedBy=${wantedBy}
 }
 
 export function userUnitPath(): string {
-  return path.join(os.homedir(), ".config", "systemd", "user", `${SERVICE_NAME}.service`);
+  return path.join(
+    os.homedir(),
+    ".config",
+    "systemd",
+    "user",
+    `${SERVICE_NAME}.service`,
+  );
 }
 
 export function systemUnitPath(): string {