Move Dockerfile, docker-compose.yaml, and entrypoint.ts into docker/

Update build context, dockerfile path, and volume mounts in
docker-compose.yaml to account for the new location.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker/Dockerfile

@@ -25,6 +25,6 @@ RUN bun install --frozen-lockfile
 COPY apps/arc-web apps/arc-web
 COPY packages/arc-api-client packages/arc-api-client
 COPY docs docs
-COPY entrypoint.ts .
+COPY docker/entrypoint.ts .
 
 ENTRYPOINT ["bun", "run", "entrypoint.ts"]

docker/docker-compose.yaml

@@ -2,7 +2,8 @@ services:
   api:
     image: arc
     build:
-      context: .
+      context: ..
+      dockerfile: docker/Dockerfile
       platforms:
         - linux/arm64
     pull_policy: never
@@ -19,7 +20,7 @@ services:
     environment:
       - ARC_DEMO=1
     volumes:
-      - ./docker/demo-server.toml:/root/.arc/server.toml:ro
+      - ./demo-server.toml:/root/.arc/server.toml:ro
     depends_on:
       - api
 
@@ -30,4 +31,4 @@ services:
     ports:
       - "3333:3333"
     volumes:
-      - ./docs:/app/docs:ro
+      - ../docs:/app/docs:ro