Merge pull request 'fix(kugetsu): destroy --base and --pm-agent actually delete opencode sessions' (#113) from fix/destroy-removes-opencode-session into main

Previously destroy only removed local session files but didn't delete
the sessions from opencode's database. This caused init to reuse the
same session with old context.

Now destroy calls 'opencode session delete <id>' to properly remove
the session from opencode.

skills/kugetsu/scripts/kugetsu

@@ -1548,6 +1548,7 @@ cmd_destroy() {
 
     if [ "$target" = "base" ]; then
         if [ "$force" = true ]; then
+            local base_session_id=$(get_base_session_id)
             rm -f "$SESSIONS_DIR/base.json"
             local pm_agent=$(get_pm_agent_session_id)
             if [ -n "$pm_agent" ] && [ "$pm_agent" != "null" ]; then
@@ -1556,6 +1557,10 @@ cmd_destroy() {
             else
                 echo '{"base": null, "pm_agent": null, "issues": {}}' > "$INDEX_FILE"
             fi
+            if [ -n "$base_session_id" ] && [ "$base_session_id" != "null" ]; then
+                echo "Deleting opencode session: $base_session_id"
+                opencode session delete "$base_session_id" 2>/dev/null || echo "Warning: Could not delete session from opencode (may already be deleted)"
+            fi
             echo "Base session destroyed"
         else
             echo "Error: destroying base session requires --base -y" >&2
@@ -1566,6 +1571,7 @@ cmd_destroy() {
 
     if [ "$target" = "pm-agent" ]; then
         if [ "$force" = true ]; then
+            local pm_session_id=$(get_pm_agent_session_id)
             rm -f "$SESSIONS_DIR/pm-agent.json"
             local base=$(get_base_session_id)
             if [ -n "$base" ] && [ "$base" != "null" ]; then
@@ -1573,6 +1579,10 @@ cmd_destroy() {
             else
                 write_index "null" "null" "{}"
             fi
+            if [ -n "$pm_session_id" ] && [ "$pm_session_id" != "null" ]; then
+                echo "Deleting opencode session: $pm_session_id"
+                opencode session delete "$pm_session_id" 2>/dev/null || echo "Warning: Could not delete session from opencode (may already be deleted)"
+            fi
             echo "PM agent session destroyed"
         else
             echo "Error: destroying pm-agent session requires --pm-agent -y" >&2