ci: raise WASM size limit to 768 KB

The 512 KB tripwire predates kitty graphics: it was set when the
project first started building from the upstream submodule, sized for
a build with kitty_graphics disabled on wasm32-freestanding. This
branch flips that flag, which pulls in the kitty storage layer (LRU,
image table, placement iterator) plus the new C ABI surface — taking
the binary from ~480 KB to ~611 KB. Raise the cap to 768 KB to track
the new baseline while still catching unintended bloat.

Signed-off-by: Evan Wies <evan@neomantra.net>

Author: neomantra

.github/workflows/ci.yml

@@ -103,8 +103,8 @@ jobs:
         run: |
           SIZE=$(stat -c%s ghostty-vt.wasm)
           echo "WASM size: $SIZE bytes"
-          if [ "$SIZE" -gt 524288 ]; then
-            echo "❌ Error: WASM exceeds 512 KB limit"
+          if [ "$SIZE" -gt 786432 ]; then
+            echo "❌ Error: WASM exceeds 768 KB limit"
             exit 1
           fi