chore: remove legacy examples; add echarts plugin; add test comments

Author: joaomdsg

.gitignore

@@ -37,13 +37,7 @@ go.work.sum
 # Air artifacts
 *tmp/
 
-# binaries
-internal/examples/chatroom/chatroom
-internal/examples/counter/counter
-internal/examples/countercomp/countercomp
-internal/examples/greeter/greeter
-internal/examples/livereload/livereload
-internal/examples/picocss/picocss
-internal/examples/plugins/plugins
-internal/examples/realtimechart/realtimechart
-internal/examples/shakespeare/shakespeare
+# Example binaries (no extension)
+internal/examples/pathparams/pathparams
+picocss
+

ci-check.sh

@@ -30,7 +30,7 @@ if [ -d "internal/examples" ]; then
   while IFS= read -r -d '' mainfile; do
     dir="$(dirname "$mainfile")"
     echo "Building $dir"
-    if ! (cd "$dir" && go build); then
+    if ! (cd "$dir" && go build -o /tmp); then
       echo "ERROR: example build failed: $dir"
       exit 1
     fi
@@ -40,7 +40,7 @@ if [ -d "internal/examples" ]; then
   if [ "$count" -eq 0 ]; then
     echo "NOTE: no example main.go files found under internal/examples"
   else
-    echo "OK: built $count example(s)"
+    echo "OK: built $count example(s) to /tmp"
   fi
 else
   echo "NOTE: internal/examples not found, skipping example builds"