fix: mount .m2 and .deps.clj to /root/ for awf sandbox

The awf sandbox runs as root, so $HOME=/root. bb (GraalVM native
image) uses $HOME to find .m2/repository and .deps.clj/. Previous
attempts with env vars (JAVA_TOOL_OPTIONS, CLJ_CONFIG, CLJ_JVM_OPTS)
failed because bb ignores JAVA_TOOL_OPTIONS (native image), skips
user config (:user nil), and CLJ_JVM_OPTS doesn't reach tools.deps.

The correct fix: mount the host directories to /root/ in addition to
/home/runner/, so they're found at $HOME/.m2 and $HOME/.deps.clj
regardless of what $HOME is.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: krukow

.github/workflows/copilot-setup-steps.yml

@@ -68,18 +68,9 @@ jobs:
               echo "Copied tools jar to $TOOLS_TARGET"
             fi
           fi
-          # Inside the awf sandbox $HOME is /root, but the mounts map
-          # /home/runner/.deps.clj and /home/runner/.m2 into the container
-          # at those same absolute paths. bb is a GraalVM native image so
-          # JAVA_TOOL_OPTIONS has no effect — we must use env vars that
-          # bb/tools.deps read directly.
-          #
-          # DEPS_CLJ_TOOLS_DIR: tells bb's deps.clj where the tools jar is
-          # CLJ_CONFIG: tells tools.deps where to find user deps.edn (which
-          #   contains :mvn/local-repo pointing to the mounted Maven cache)
-          echo '{:mvn/local-repo "/home/runner/.m2/repository"}' > "$HOME/.deps.clj/deps.edn"
-          echo "DEPS_CLJ_TOOLS_DIR=$HOME/.deps.clj" >> "$GITHUB_ENV"
-          echo "CLJ_CONFIG=$HOME/.deps.clj" >> "$GITHUB_ENV"
+          # Inside the awf sandbox $HOME is /root (container runs as root).
+          # The workflow mounts .m2 and .deps.clj to both /home/runner/ and
+          # /root/ paths, so bb finds them regardless of $HOME.
           # Ensure deps directories are readable by any user
           chmod -R a+rX ~/.m2/repository ~/.deps.clj 2>/dev/null || true
       - name: Install gh-aw extension

.github/workflows/daily-doc-updater.lock.yml

@@ -33,6 +33,8 @@ sandbox:
     mounts:
     - "/home/runner/.m2:/home/runner/.m2:ro"
     - "/home/runner/.deps.clj:/home/runner/.deps.clj:ro"
+    - "/home/runner/.m2:/root/.m2:ro"
+    - "/home/runner/.deps.clj:/root/.deps.clj:ro"
 strict: true
 timeout-minutes: 45
 imports: