fix(nix): use --rebuild in fix-lockfiles to bypass cached FOD store paths (#15444)

* fix(nix): use --rebuild in fix-lockfiles to bypass cached FOD store paths

fix-lockfiles checked npm lockfile hashes by running
`nix build .#<attr>.npmDeps`, but fetchNpmDeps is a fixed-output
derivation — if the old store path exists locally, Nix returns it from
cache without re-fetching. This caused the script to report "ok" even
when hashes were stale, while CI (with no cache) failed with a hash
mismatch.

Adding --rebuild forces Nix to re-derive and verify the output hash
against the declared one, catching staleness regardless of local cache
state. Also updates the tui and web npm deps hashes that were stale.

* fix(nix): regenerate ui-tui lockfile to add missing @emnapi entries

npm ci was failing because @emnapi/core and @emnapi/runtime were
missing from ui-tui/package-lock.json despite being required as peer
deps by @napi-rs/wasm-runtime (via @rolldown/binding-wasm32-wasi).

Running npm install --package-lock-only adds the missing entries.
The npmDepsHash reverts to its previous value since fetchNpmDeps was
already fetching these packages as transitive dependencies.

nix/lib.nix

@@ -156,7 +156,7 @@
       for entry in "''${ENTRIES[@]}"; do
         IFS=":" read -r ATTR FOLDER NIX_FILE <<< "$entry"
         echo "==> .#$ATTR ($FOLDER -> $NIX_FILE)"
-        OUTPUT=$(nix build ".#$ATTR.npmDeps" --no-link --print-build-logs 2>&1)
+        OUTPUT=$(nix build ".#$ATTR.npmDeps" --no-link --rebuild --print-build-logs 2>&1)
         STATUS=$?
         if [ "$STATUS" -eq 0 ]; then
           echo "    ok"

nix/web.nix

@@ -4,7 +4,7 @@ let
   src = ../web;
   npmDeps = pkgs.fetchNpmDeps {
     inherit src;
-    hash = "sha256-TS/vrCHbdvXkPcAPxImKzAd2pdDCrKlgYZkXBMQ+TEg=";
+    hash = "sha256-4Z8KQ69QhO83X6zff+5urWBv6MME686MhTTMdwSl65o=";
   };
 
   npm = hermesNpmLib.mkNpmPassthru { folder = "web"; attr = "web"; pname = "hermes-web"; };