feat!: drop TagImplOptions in favor of Tag classes (#839) (#927)

* feat!: drop TagImplOptions in favor of Tag classes (#839)

Remove tag-options-adapter and the registerTag object-literal overload.
Custom tags must extend Tag.

Co-authored-by: Cursor <[email protected]>

* test: drop TagImplOptions-specific e2e coverage (#839)

Remove #570 v9 object-literal registration test and unused metadata_file setup in #573.

Co-authored-by: Cursor <[email protected]>

* test: use inline Tag classes in register-tags spec

Co-authored-by: Cursor <[email protected]>

* test: remove dead throwingTag setup and duplicate throw stub

for.spec kept throwingTag registration after #713 removed its test. Reuse ThrowingTag in liquid.spec instead of IntendedRenderErrorTag.

Co-authored-by: Cursor <[email protected]>

* test: remove dead throwingTag setup and duplicate throw stub

for.spec kept throwingTag registration after #713 removed its test. Reuse ThrowingTag in liquid.spec instead of IntendedRenderErrorTag.

Co-authored-by: Cursor <[email protected]>

* fix(demo): ignore killall exit when express server already stopped

Co-authored-by: Cursor <[email protected]>

* fix(demo): revert unrelated return->exit change in express test

Co-authored-by: Cursor <[email protected]>

* fix(demo): use exit in express test script (no enclosing function)

Co-authored-by: Cursor <[email protected]>

---------

Co-authored-by: Cursor <[email protected]>

test/demo/test.sh

@@ -14,9 +14,9 @@ for demo in $(ls demo); do
   npm link liquidjs
 
   if npm test; then
-    echo [success] demo/webpack
+    echo "[success] demo/$demo"
   else
-    echo [fail] demo/webpack
+    echo "[fail] demo/$demo"
     exit 1
   fi
   cd -