fix: address Copilot review round 2

- config-merge.sh: reword comment to only promise indentation preservation (not full formatting)
- take-snapshot.sh: copy required artifacts explicitly, optional ones with existence check
- adapters/lib.sh: document parse_hook_yaml single-trigger limitation

adapters/lib.sh

@@ -85,6 +85,12 @@ should_include() {
 # parse_hook_yaml <hook_yaml_file>
 # Emits key=value lines for each top-level scalar AND for trigger fields.
 # Output keys: name, script, event, match-tool (space-separated tokens), exclude.
+#
+# NOTE: This flattens all triggers into a single stream. When a hook has
+# multiple triggers, the association between event and match-tool is lost.
+# Currently all hooks use a single trigger, so this is not an issue in
+# practice. If multi-trigger hooks are needed, this output format must be
+# changed to emit delimited records (one per trigger).
 parse_hook_yaml() {
   local file="$1"
   awk '

adapters/opencode/config-merge.sh

@@ -3,8 +3,9 @@
 # adapters/opencode/config-merge.sh — JSON config merge for opencode.json
 # =============================================================================
 # Merges a built opencode.json with an existing one in the vault, preserving
-# user keys and formatting. Only the "mcp" key is managed; everything else
-# belongs to the user.
+# user keys and indentation style (2-space, 4-space, or tab). Only the "mcp"
+# key is managed; everything else belongs to the user. Note: jq normalizes
+# whitespace and may reorder keys within objects.
 #
 # Sourced by the opencode adapter. Requires jq.
 # =============================================================================

tests/regression/take-snapshot.sh

@@ -15,7 +15,13 @@ DIST_DIR="$REPO_DIR/dist/claude-code"
 # Replace snapshot with current build output
 rm -rf "$SNAPSHOT_DIR"
 mkdir -p "$SNAPSHOT_DIR"
-cp -r "$DIST_DIR"/* "$DIST_DIR"/.claude "$DIST_DIR"/.mcp.json "$SNAPSHOT_DIR/" 2>/dev/null || true
+
+# Required artifacts — fail loudly if missing
+cp -r "$DIST_DIR/.claude" "$SNAPSHOT_DIR/.claude"
+cp "$DIST_DIR/CLAUDE.md" "$SNAPSHOT_DIR/CLAUDE.md"
+
+# Optional artifacts — copy if present
+[[ -f "$DIST_DIR/.mcp.json" ]] && cp "$DIST_DIR/.mcp.json" "$SNAPSHOT_DIR/.mcp.json"
 
 # Remove non-deterministic / install-only artifacts
 rm -f "$SNAPSHOT_DIR/.claude/.mbifc-manifest"