refactor: improve regex readability in grader scripts per code review

Co-authored-by: zdrawku <11193764+zdrawku@users.noreply.github.com>

Author: Copilot

evals/tasks/grid-basic-setup/tests/test.sh

@@ -38,8 +38,10 @@ else
 fi
 
 # --- Check 3: Correct import from igniteui-angular entry point ---
+# Accepts either the OSS or licensed package path
+GRID_IMPORT_PATTERN="from ['\"](@infragistics/)?igniteui-angular/grids/grid['\"]"
 if [ -n "$COMPONENT_FILE" ]; then
-  if grep -qE "from ['\"]igniteui-angular/grids/grid['\"]|from ['\"]@infragistics/igniteui-angular/grids/grid['\"]" "$COMPONENT_FILE" 2>/dev/null; then
+  if grep -qE "$GRID_IMPORT_PATTERN" "$COMPONENT_FILE" 2>/dev/null; then
     SCORE=$((SCORE + 1))
     DETAILS="${DETAILS}PASS: Correct grid entry-point import found\n"
   else

evals/tasks/theming-palette-generation/tests/test.sh

@@ -24,7 +24,10 @@ if [ -z "${STYLES_FILE:-}" ]; then
 fi
 
 # --- Check 1: Import from igniteui-angular/theming ---
-if grep -qE "@use ['\"]igniteui-angular/theming['\"]|@use ['\"]@infragistics/igniteui-angular/theming['\"]|@import ['\"]igniteui-angular/theming['\"]|@import ['\"]@infragistics/igniteui-angular/theming['\"]|@import ['\"]~igniteui-angular/lib/core/styles/themes" "$STYLES_FILE" 2>/dev/null; then
+# Accepts @use or @import with either the OSS or licensed package path
+THEMING_IMPORT_PATTERN="@(use|import) ['\"](@infragistics/)?igniteui-angular/theming['\"]"
+LEGACY_IMPORT_PATTERN="@import ['\"]~igniteui-angular/lib/core/styles/themes"
+if grep -qE "$THEMING_IMPORT_PATTERN|$LEGACY_IMPORT_PATTERN" "$STYLES_FILE" 2>/dev/null; then
   SCORE=$((SCORE + 1))
   DETAILS="${DETAILS}PASS: Correct theming import found\n"
 else