fix(tests): repair extension summary assertion in doctor diagnostics test

tests/test-doctor-extension-diagnostics.sh test #9 used
grep -q "ext_total.*ext_healthy" which requires ext_total to appear
FIRST on a single line. But scripts/dream-doctor.sh:364 emits
"{ext_healthy}/{ext_total} healthy, {ext_issues} with issues" —
ext_healthy comes first. The test has been permanently failing since
the format was introduced.

Switches to two chained order-independent substring greps, matching
the idiom already used in the same file at test #7 (extensions_total +
extensions_healthy + extensions_issues). Future-proof against either
variable being reordered in the print statement.

All 9 tests now pass (was 8/9 before).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: yasinBursali

dream-server/tests/test-doctor-extension-diagnostics.sh

@@ -87,7 +87,8 @@ else
 fi
 
 # 9. Extension summary in output
-if grep -q "ext_total.*ext_healthy" "$ROOT_DIR/scripts/dream-doctor.sh"; then
+if grep -q "ext_total" "$ROOT_DIR/scripts/dream-doctor.sh" && \
+   grep -q "ext_healthy" "$ROOT_DIR/scripts/dream-doctor.sh"; then
     pass "Extension summary output present"
 else
     fail "Extension summary output missing"