Compile paraglide before type-checking client_v2

The type check assumed $lib/paraglide existed, but it's gitignored
output of the paraglide vite plugin, so it only appears once something
runs vite. svelte-check doesn't, which left the job resolving ~40
imports of $lib/paraglide/{messages,runtime} against nothing on any
fresh checkout -- CI every time, and a new clone locally. It went
unnoticed because the job had been dying at exit 127 before it could
get far enough to report, and because a working tree that has ever run
dev or build has the directory sitting there.

The compiler ships a CLI, so this costs a compile rather than a full
vite build. Its flags live in a package.json script that `check` and
the hook both call, leaving one copy to keep in sync with the plugin
options in vite.config.ts.

Claude-Session: https://claude.ai/code/session_01UB5KocsTBm9GL5x3Uuup5F

client_v2/package.json

@@ -12,8 +12,9 @@
 		"preview": "vite preview",
 		"test": "vitest run",
 		"test:watch": "vitest",
-		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
-		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
+		"paraglide": "paraglide-js compile --project ./project.inlang --outdir ./src/lib/paraglide --strategy localStorage preferredLanguage baseLocale",
+		"check": "npm run paraglide && svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
+		"check:watch": "npm run paraglide && svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
 		"format": "prettier --write .",
 		"lint": "prettier --check . && eslint .",
 		"lint:eslint": "eslint .",

lefthook.yml

@@ -36,8 +36,12 @@ pre-commit:
             stage_fixed: true
           - name: Run type check on client_v2 files
             root: "client_v2/"
-            # svelte-kit sync generates .svelte-kit/tsconfig.json, which svelte-check needs.
-            run: ./node_modules/.bin/svelte-kit sync && ./node_modules/.bin/svelte-check --tsconfig ./tsconfig.json
+            # Both prerequisites are gitignored generated code, absent on a fresh
+            # clone: paraglide compiles $lib/paraglide (normally done by the vite
+            # plugin, so a non-build check never triggers it), and svelte-kit sync
+            # generates .svelte-kit/tsconfig.json. npm run keeps the paraglide
+            # flags in package.json only, so they can't drift from vite.config.ts.
+            run: npm run paraglide && ./node_modules/.bin/svelte-kit sync && ./node_modules/.bin/svelte-check --tsconfig ./tsconfig.json
 
 # Same as pre-commit but no fixes
 ci:
@@ -72,6 +76,6 @@ ci:
             run: ./node_modules/.bin/prettier --check .
           - name: Run type check on client_v2 files
             root: "client_v2/"
-            # svelte-kit sync generates .svelte-kit/tsconfig.json, which svelte-check needs.
-            run: ./node_modules/.bin/svelte-kit sync && ./node_modules/.bin/svelte-check --tsconfig ./tsconfig.json
+            # See the ci hook's copy of this job for why paraglide runs first.
+            run: npm run paraglide && ./node_modules/.bin/svelte-kit sync && ./node_modules/.bin/svelte-check --tsconfig ./tsconfig.json