feat: add Ralph CLI and NODE_OPTIONS to devcontainer

- Add NODE_OPTIONS=--max-old-space-size=16384 to prevent OOM in Claude Code
- Install Ralph CLI for autonomous task execution with API recovery
- Add Ralph shell completion for zsh
- Remove CodeRabbit CLI (unused)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: alexsteeel

src/ai_sbx/dockerfiles/devcontainer-base/Dockerfile

@@ -115,6 +115,11 @@ RUN uv pip install --system --break-system-packages --no-cache ruff black
 RUN uv pip install --system --break-system-packages --no-cache \
     git+https://github.com/alexsteeel/md-task-mcp.git
 
+# Install Ralph CLI (autonomous task execution with API recovery)
+# https://github.com/alexsteeel/.claude/tree/master/cli
+RUN uv pip install --system --break-system-packages --no-cache \
+    "ralph @ git+https://github.com/alexsteeel/.claude.git#subdirectory=cli"
+
 # Install shfmt
 ENV SHFMT_VERSION=3.7.0
 RUN set -eux; \
@@ -201,10 +206,6 @@ RUN npm install -g @openai/codex
 # https://github.com/google-gemini/gemini-cli
 RUN npm install -g @google/gemini-cli
 
-# Install CodeRabbit CLI
-# https://docs.coderabbit.ai/cli/overview
-RUN curl -fsSL https://cli.coderabbit.ai/install.sh | sh || true
-
 # Install Playwright test framework globally
 # https://playwright.dev/
 # Note: Browser binaries installed earlier as root
@@ -225,7 +226,7 @@ COPY --chown=$USERNAME:$USERNAME devcontainer-base/conf/.tmux.conf /home/$USERNA
 COPY --chown=$USERNAME:$USERNAME devcontainer-base/conf/.vimrc /home/$USERNAME/.vimrc
 COPY --chown=$USERNAME:$USERNAME devcontainer-base/conf/codex_config.toml /home/$USERNAME/.codex/config.toml
 
-# Create logs directory for scripts to avoid conflicts with .ai_agents_sandbox directory
+# Create logs directory for devcontainer scripts (non-root-post-create.sh, tests)
 RUN mkdir -p /home/$USERNAME/scripts/logs && \
     chown -R $USERNAME:$USERNAME /home/$USERNAME/scripts/logs
 

src/ai_sbx/dockerfiles/devcontainer-base/conf/.zshrc

@@ -26,7 +26,14 @@ source $ZSH/oh-my-zsh.sh
 
 [[ ! -f ~/.p10k.zsh ]] || source ~/.p10k.zsh
 
+# NODE_OPTIONS: Prevent OOM in Claude Code by increasing V8 heap limit
+# https://github.com/anthropics/claude-code/issues/3931
+export NODE_OPTIONS="--max-old-space-size=16384"
+
 # Aliases for Claude and Codex
 # Disable auto-update to preserve pinned version (proxy regression in 2.0.48+)
 alias claude='CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1 claude --dangerously-skip-permissions'
 alias codex='codex'
+
+# Ralph CLI shell completion (Typer-based)
+eval "$(ralph --show-completion zsh 2>/dev/null || true)"