fix: scope hooks to DevDesk's tmux and reload env per Claude launch (0.2.1)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libexec/devdesk-lib.sh

@@ -152,8 +152,10 @@ dd_resolve_dir() {
 # Name of the DevDesk session this process runs in. Asks tmux, so it stays
 # right after a rename; falls back to the DEVDESK_SESSION set at creation.
 dd_current_session() {
-    local name=""
-    if [ -n "${TMUX:-}" ] && [ -n "${TMUX_PANE:-}" ]; then
+    local name="" outer=${TMUX:-}
+    # Only DevDesk's own tmux server: a Claude started with these settings in
+    # some other tmux must not write into DevDesk's state.
+    if [ "${outer%%,*}" = "$DEVDESK_SOCKET" ] && [ -n "${TMUX_PANE:-}" ]; then
         name=$(tmux display-message -p -t "$TMUX_PANE" '#S' 2>/dev/null)
     fi
     printf '%s\n' "${name:-${DEVDESK_SESSION:-}}"