fix: mount /apps and docker socket in PR workflow build-and-deploy-ci job (#41)

Reviewed-on: #41
Co-authored-by: David Gwilliam <dhgwilliam@gmail.com>
Co-committed-by: David Gwilliam <dhgwilliam@gmail.com>

.env.example

@@ -1,19 +1,16 @@
 # EuchreCamp Environment Configuration
 # ============================================
-# Copy this file to .env (for local dev) or use
-# .env.development / .env.ci for specific environments
+# Copy this file to .env or use
+# .env.development / .env.production for specific environments
 
 # ============================================
 # Database Configuration
 # ============================================
 # IMPORTANT: Use the appropriate DATABASE_URL for your environment:
 #
-# - Development (ephemeral, synced from prod):  euchre_camp_dev
-# - CI/Testing (reset before each run):        euchre_camp_ci  
-# - Production (DO NOT USE FOR TESTS):         euchre_camp
-#
-# The .credentials file in the project root contains
-# the actual connection strings - DO NOT commit .credentials
+# - Development:  euchre_camp_dev (in .env.development)
+# - CI/Testing:   euchre_camp_ci (set via CI_DATABASE_URL secret)
+# - Production:   euchre_camp (in .env.production, DO NOT USE FOR TESTS)
 
 DATABASE_PROVIDER=postgresql
 
@@ -42,7 +39,6 @@ TRUSTED_ORIGINS=http://localhost:3000,http://127.0.0.1:3000
 #   NODE_ENV=development
 #   BETTER_AUTH_URL=http://localhost:3000
 #
-# For CI (.env.ci):
-#   DATABASE_URL from .credentials (euchre_camp_ci)
-#   NODE_ENV=test
-#   BETTER_AUTH_URL=http://localhost:3000
+# For CI (set via secrets):
+#   DATABASE_URL set as CI_DATABASE_URL secret (euchre_camp_ci)
+#   NODE_ENV=test