Creating migrations files to create movies table and add movies check constraints. Updating API version number. Updating README.md adding 'SQL Migrations' section. Updating deployment file to make migrations before building API. Adding some .idea files into .gitignore.

.gitea/workflows/deploy.yml

@@ -23,6 +23,10 @@ jobs:
         with:
           go-version: "1.23"   # adapte selon ta version
 
+      - name: Apply migrations
+        run: |
+          migrate -path=./migrations -database=$GREENLIGHT_DB_DSN up
+
       - name: Build API
         run: |
           go mod tidy