chore(deps): @run402/astro 2.0.0 — auth-aware SSR substrate

v2 ships the hosted-auth components (<SignedIn>, <SignedOut>, <SignIn>,
<SignUp>, <UserButton>) and tightens the SSR adapter so auth.*() calls
in .astro frontmatter resolve against the verified actor envelope.
Required for SSR auth guards on admin pages (next commit).

Regression-clean: typecheck shows the same 3 pre-existing readonly-array
errors on main (unrelated to this bump), vitest passes 1049/1050 (lone
failure is the pre-existing portal-first-byte-build env-vars issue),
build with KYCHON_PROJECT=eagles RUN402_PROJECT_ID=… completes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: MajorTal

package-lock.json

@@ -63,7 +63,7 @@
     "@radix-ui/react-select": "2.2.6",
     "@radix-ui/react-slot": "1.2.4",
     "@radix-ui/react-tooltip": "1.2.8",
-    "@run402/astro": "^1.2.2",
+    "@run402/astro": "^2.0.0",
     "@run402/functions": "^3.0.0",
     "class-variance-authority": "0.7.1",
     "clsx": "2.1.1",