CLI: fix duplicate shebang in bundle; accept flags before the command (--help, -h)

esbuild already keeps the shebang from src/cli/main.ts, so the extra banner
produced two shebang lines and node refused to load the bundle.

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

2 files changed, 10 insertions, 4 deletions

diff --git a/package.json b/package.json
index d736062..d187d6a 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   "scripts": {
     "dev": "electron-vite dev",
     "build": "electron-vite build && npx esbuild src/mcp/lattex.mjs --bundle --platform=node --format=esm --outfile=out/mcp/lattex.mjs",
-    "build:cli": "npx esbuild src/cli/main.ts --bundle --platform=node --format=esm --target=node18 --outfile=out/cli/lattex-cli.mjs --external:ws --banner:js='#!/usr/bin/env node'",
+    "build:cli": "npx esbuild src/cli/main.ts --bundle --platform=node --format=esm --target=node18 --outfile=out/cli/lattex-cli.mjs --external:ws",
     "typecheck:cli": "npx tsc --project tsconfig.cli.json --noEmit",
     "test:cli": "node --experimental-vm-modules out/cli/test.mjs",
     "preview": "electron-vite preview",
diff --git a/src/cli/args.ts b/src/cli/args.ts
index 0f7a767..25d3216 100644
--- a/src/cli/args.ts
+++ b/src/cli/args.ts
@@ -8,13 +8,17 @@ export interface ParsedArgs {
 
 export function parseArgs(argv: string[]): ParsedArgs {
   const args = argv.slice(2)
-  const command = args[0] || ''
+  let command = ''
   const positional: string[] = []
   const flags: Record<string, string | boolean> = {}
 
-  for (let i = 1; i < args.length; i++) {
+  // The command is the first non-flag token, so `lattex-cli --help` and
+  // `lattex-cli --json projects` both work.
+  for (let i = 0; i < args.length; i++) {
     const arg = args[i]
-    if (arg.startsWith('--')) {
+    if (arg === '-h') {
+      flags.help = true
+    } else if (arg.startsWith('--')) {
       const eqIdx = arg.indexOf('=')
       if (eqIdx !== -1) {
         flags[arg.slice(2, eqIdx)] = arg.slice(eqIdx + 1)
@@ -30,6 +34,8 @@ export function parseArgs(argv: string[]): ParsedArgs {
       } else {
         flags[arg.slice(2)] = true
       }
+    } else if (!command) {
+      command = arg
     } else {
       positional.push(arg)
     }