chore: initialize monorepo wrapper

.env.example

@@ -0,0 +1,25 @@
+# Root environment for docker compose
+
+# Required by POCSite. Must be a 32-byte hex string.
+ENCRYPTION_KEY=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
+
+# Public site URL exposed from the host.
+NEXT_PUBLIC_APP_URL=http://localhost:3000
+
+# Postgres service defaults used by compose and Prisma.
+POSTGRES_DB=pocdb
+POSTGRES_USER=pocuser
+POSTGRES_PASSWORD=pocpassword
+
+# Runtime toggle for Prisma migrations on container startup.
+RUN_MIGRATIONS=true
+
+# Pipeline service retry behavior.
+PIPELINE_RETRY_LIMIT=1
+
+# LLM provider credentials for POCGraphGen.
+ANTHROPIC_API_KEY=
+OPENAI_API_KEY=
+AZURE_OPENAI_API_KEY=
+AZURE_OPENAI_ENDPOINT=
+GOOGLE_API_KEY=