chore: improve compose for git worktree (#142)

* Avoid multiple project names in `docker compose` by setting a common name.
* Simplify `develop` watch rules:
  * When `mix.lock` is changed, rebuild the image.
  * When any other file is changed, sync and restart the service.
    * Except for directories that are related to deps/build/test/lsp.
* Remove `file` argument from `docker compose` in `Makefile`

Reviewed-on: #142
Co-authored-by: Joao P Dubas <joao.dubas+gitea@gmail.com>
Co-committed-by: Joao P Dubas <joao.dubas+gitea@gmail.com>

Makefile

@@ -1,6 +1,6 @@
 .DEFAULT_GOAL := help
 
-COMPOSE = docker compose -f docker-compose.yml -f docker-compose.override.yml
+COMPOSE = docker compose
 
 .PHONY: system_setup
 system_setup:  ## setup system deps

docker-compose.yml

@@ -1,4 +1,6 @@
 ---
+name: ${EX_TRAINER_PROJECT_NAME:-ex_trainer}
+
 services:
   db:
     image: 'postgres:17.4-alpine'
@@ -12,6 +14,7 @@ services:
       - './priv/docker/postgres/init.sql:/docker-entrypoint-initdb.d/init.sql'
       - 'db_data:/var/lib/postgresql/data'
     restart: unless-stopped
+
   app:
     image: 'joaodubas/ex_trainer:${EX_TRAINER_TAG:-dev}'
     build:
@@ -26,23 +29,17 @@ services:
     init: true
     develop:
       watch:
+        - path: ./mix.lock
+          action: rebuild
         - path: ./
           ignore:
             - ./build/
             - ./deps/
-          target: /opt/app
-          action: sync
-        - path: ./config/
+            - ./.elixir_ls/
+            - ./cover/
+            - ./report/
           target: /opt/app
           action: sync+restart
-        - path: ./lib/wabanex/application.ex
-          target: /opt/app
-          action: sync+restart
-        - path: ./mix.exs
-          target: /opt/app
-          action: sync+restart
-        - path: ./mix.lock
-          action: rebuild
     environment:
       DNS_CLUSTER_QUERY: *app_host
       POSTGRES_HOST: *db_host
@@ -54,6 +51,7 @@ services:
     scale: 3
     entrypoint: ./priv/docker/service/docker-entrypoint.sh
     command: local-cookie
+
   test:
     image: 'joaodubas/ex_trainer:test'
     build: