fix(v0.4.x): repair Docker image build + finish rename in container files

Two issues caught while inspecting why the v0.4.0 Release Binaries
workflow had its Docker step fail:

1. OpenCode upstream changed release asset format. The Dockerfile
   was curl'ing `opencode_linux_${ARCH}` (single binary, old
   pattern) but OpenCode now publishes `opencode-linux-${ARCH}.tar.gz`
   tarballs. The curl returned 404 and the docker build aborted.
   Fix: pull the tarball, extract the `opencode` binary out of it.

2. Sub-agent A's v0.4.0 rename missed the Docker stack. Updated:
   - Dockerfile: `mkdir -p /root/.ao` → `mkdir -p /root/.animus`
   - docker-compose.yaml: service name `ao` → `animus`, image
     `ghcr.io/launchapp-dev/ao:latest` → `ghcr.io/launchapp-dev/animus:latest`,
     entrypoint `ao` → `animus`, volume `ao-data:/root/.ao` →
     `animus-data:/root/.animus`.

These will land alongside the discovery-path fix (5651373) and the
narrative-doc AO sweep (b6d4c11) as the v0.4.1 patch surface.

Author: Shooksie

Dockerfile

@@ -40,13 +40,15 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 RUN npm install -g @anthropic-ai/claude-code @openai/codex \
     && npm cache clean --force
 
-# Install OpenCode (Go binary)
+# Install OpenCode (tarball asset; pattern changed upstream to opencode-linux-<arch>.tar.gz)
 RUN ARCH=$(dpkg --print-architecture) \
-    && curl -fsSL "https://github.com/opencode-ai/opencode/releases/latest/download/opencode_linux_${ARCH}" -o /usr/local/bin/opencode \
-    && chmod +x /usr/local/bin/opencode
+    && curl -fsSL "https://github.com/opencode-ai/opencode/releases/latest/download/opencode-linux-${ARCH}.tar.gz" -o /tmp/opencode.tar.gz \
+    && tar -xzf /tmp/opencode.tar.gz -C /usr/local/bin/ opencode \
+    && chmod +x /usr/local/bin/opencode \
+    && rm /tmp/opencode.tar.gz
 
-# Create .ao directory for state
-RUN mkdir -p /root/.ao
+# Create Animus state directory
+RUN mkdir -p /root/.animus
 
 # Copy binaries from builder
 COPY --from=builder /src/target/release/animus /usr/local/bin/animus

docker-compose.yaml

@@ -1,11 +1,11 @@
 services:
-  ao:
+  animus:
     build: .
-    image: ghcr.io/launchapp-dev/ao:latest
-    entrypoint: ["ao"]
+    image: ghcr.io/launchapp-dev/animus:latest
+    entrypoint: ["animus"]
     command: ["daemon", "start", "--autonomous"]
     volumes:
-      - ao-data:/root/.ao
+      - animus-data:/root/.animus
       - ./:/workspace
     environment:
       # Agent API keys — set these in .env or pass at runtime
@@ -16,4 +16,4 @@ services:
     restart: unless-stopped
 
 volumes:
-  ao-data:
+  animus-data: