feat(docker): add caveman plugin integration

Add caveman plugin to the Docker image with version resolution, file downloads, and opencode.json registration. Also fixes the npx symlink command and updates the Azure Foundry provider to v0.4.0.

Author: tmeckel

Dockerfile

@@ -14,7 +14,7 @@ ENV PATH="${PATH}:${PYTHON_DIR}/bin"
 RUN <<'FOE'
 
 ln -s /usr/local/bin/bun /usr/local/bin/node
-ls -s /usr/local/bin/bun /usr/local/bin/npx
+ln -s /usr/local/bin/bun /usr/local/bin/npx
 
 apt-get update
 apt-get install \
@@ -79,7 +79,8 @@ EOF
 FOE
 
 ARG OPENCODE_VERSION=latest
-ARG AZURE_FOUNDRY_PROVIDER_REF=v0.3.1
+ARG CAVEMAN_VERSION=latest
+ARG AZURE_FOUNDRY_PROVIDER_REF=v0.4.0
 ARG ENGRAM_VERSION=latest
 ARG OPENCODE_BUILD_DIR=/usr/local/share/opencode-build
 
@@ -116,6 +117,10 @@ resolve_github_latest_version() {
     echo "${version}"
 }
 
+resolve_caveman_version() {
+    resolve_github_latest_version "JuliusBrussee/caveman" "${CAVEMAN_VERSION}"
+}
+
 mkdir -p "${BUN_INSTALL}" "${OPENCODE_CONFIG_DIR}" "${OPENCODE_PLUGINS_DIR}" "${PROVIDER_DIR}"
 chmod 0777 "${OPENCODE_CONFIG_DIR}"
 
@@ -185,6 +190,41 @@ curl -fsSL "https://raw.githubusercontent.com/rtk-ai/rtk/refs/heads/master/hooks
 # vercel/skills
 bun install -g --trust skills@latest
 
+###
+# caveman
+#
+caveman_resolved_version=$(resolve_caveman_version) || exit 1
+echo "CAVEMAN_RESOLVED_REF=${caveman_resolved_version}"
+echo "${caveman_resolved_version}" > /tmp/caveman_version
+
+mkdir -p "${OPENCODE_CONFIG_DIR}/plugins/caveman" "${OPENCODE_CONFIG_DIR}/commands"
+
+CAVEMAN_RAW_BASE="https://raw.githubusercontent.com/JuliusBrussee/caveman/refs/tags/${caveman_resolved_version}"
+
+{
+  curl -fsSL "${CAVEMAN_RAW_BASE}/src/plugins/opencode/package.json" -o "${OPENCODE_CONFIG_DIR}/plugins/caveman/package.json"
+  curl -fsSL "${CAVEMAN_RAW_BASE}/src/plugins/opencode/plugin.js" -o "${OPENCODE_CONFIG_DIR}/plugins/caveman/plugin.js"
+  curl -fsSL "${CAVEMAN_RAW_BASE}/src/hooks/caveman-config.js" -o "${OPENCODE_CONFIG_DIR}/plugins/caveman/caveman-config.cjs"
+  curl -fsSL "${CAVEMAN_RAW_BASE}/src/plugins/opencode/commands/caveman.md" -o "${OPENCODE_CONFIG_DIR}/commands/caveman.md"
+  curl -fsSL "${CAVEMAN_RAW_BASE}/src/plugins/opencode/commands/caveman-commit.md" -o "${OPENCODE_CONFIG_DIR}/commands/caveman-commit.md"
+  curl -fsSL "${CAVEMAN_RAW_BASE}/src/plugins/opencode/commands/caveman-review.md" -o "${OPENCODE_CONFIG_DIR}/commands/caveman-review.md"
+  curl -fsSL "${CAVEMAN_RAW_BASE}/src/plugins/opencode/commands/caveman-stats.md" -o "${OPENCODE_CONFIG_DIR}/commands/caveman-stats.md"
+  curl -fsSL "${CAVEMAN_RAW_BASE}/src/plugins/opencode/commands/caveman-help.md" -o "${OPENCODE_CONFIG_DIR}/commands/caveman-help.md"
+} & wait || exit 1
+
+cat > "${OPENCODE_CONFIG_DIR}/commands/caveman-compress.md" <<'EOF'
+---
+description: Compress a Markdown memory file using the caveman-compress skill
+---
+Compress the target file with `caveman-compress`.
+
+Input: `$ARGUMENTS`
+
+Run the installed `caveman-compress` skill workflow against the given file path.
+Preserve code, URLs, paths, commands, and structure exactly as the skill requires.
+Overwrite the original file only if the compression succeeds, and keep the `.original.md` backup.
+EOF
+
 ###
 # cleanup
 rm -rf /root/.bun
@@ -199,6 +239,10 @@ COPY skills.yaml "${OPENCODE_BUILD_DIR}/skills.yaml"
 RUN <<'FOE'
 source /etc/bash.bashrc
 
+CAVEMAN_RESOLVED_REF=$(cat /tmp/caveman_version)
+
+export CAVEMAN_RESOLVED_REF
+
 BUN_INSTALL=/tmp/bun bun install --cwd "${OPENCODE_BUILD_DIR}/scripts" yaml || exit 1
 bun "${OPENCODE_BUILD_DIR}/scripts/install-skills.ts" || exit 1
 
@@ -210,6 +254,7 @@ cat >"${OPENCODE_CONFIG_DIR}/opencode.json" <<-'EOF'
   "$schema": "https://opencode.ai/config.json",
   "plugin": [
     "file:///usr/local/bun/install/global/node_modules/opencode-gemini-auth",
+    "file:///etc/opencode/plugins/caveman"
   ],
   "mcp": {
     "engram": {