fix: replace non-existent test-mongo-local.sh calls in Makefile and clarify MongoDB Docker requirement (#366)

* Initial plan

* docs: fix broken Makefile mongo targets and clarify MongoDB Docker requirement in AGENTS.md

Co-authored-by: shaypal5 <917954+shaypal5@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: shaypal5 <917954+shaypal5@users.noreply.github.com>

Author: Copilot

AGENTS.md

@@ -468,7 +468,7 @@ ______________________________________________________________________
 - `-p, --parallel` - Run tests with `pytest-xdist`
 - `-w, --workers` - Set number of parallel workers (default: `auto`)
 
-**Note:** External backends (MongoDB, Redis, SQL) require Docker. S3, memory, and pickle backends work without Docker.
+**Note:** Redis and SQL backends require Docker. MongoDB can run either in-memory (default, no Docker needed) or against a Dockerized instance when using `make test-mongo-local` / `./scripts/test-local.sh mongo`. S3, memory, and pickle backends work without Docker.
 You can also set cores with `CACHIER_TEST_CORES="mongo redis" ./scripts/test-local.sh`.
 
 ______________________________________________________________________

Makefile

@@ -69,13 +69,13 @@ test-mongo-inmemory:
 
 test-mongo-docker:
 	@echo "Running MongoDB tests against Docker MongoDB..."
-	./scripts/test-mongo-local.sh
+	./scripts/test-local.sh mongo
 
 test-mongo-local: test-mongo-docker
 
 test-mongo-also-local:
 	@echo "Running MongoDB tests with local core tests..."
-	./scripts/test-mongo-local.sh --mode also-local
+	./scripts/test-local.sh mongo memory pickle
 
 # New unified testing targets
 test-local: