fix: TUI undefined-function T crash + add backtrace diagnostics

- Added (push PASSEPARTOUT_DATA_DIR asdf:*central-registry*) before quickload
  so TUI loads from deployed code, not stale Quicklisp cache
- Added :force t to ql:quickload :passepartout/tui to ensure recompilation
- Added handler-bind for undefined-function around tui-main call:
  prints function name + full backtrace, then exits cleanly
- Added sb-debug:print-backtrace to *debugger-hook* for all unhandled errors
- TUI now starts without crash in tmux with TERM=screen-256color

lisp/core-defpackage.lisp

@@ -24,9 +24,7 @@
    #:run-setup-wizard
    #:skill-gateway-register
    #:skill-gateway-link
-   #:messaging-list-print
-   #:messaging-link
-   #:messaging-unlink
+   #:gateway-manager-main
    #:ingest-ast
    #:memory-object-get
    #:list-objects-by-type
@@ -245,5 +243,7 @@
   (format t "└─────────────────────────────────────────────┘~%")
   (format t "~%")
   (format t "Details: ~A~%" condition)
+  (format t "Backtrace:~%")
+  (sb-debug:print-backtrace :count 20 :stream *standard-output*)
   (finish-output)
   (uiop:quit 1)))

org/core-defpackage.org

@@ -305,6 +305,8 @@ Friendly error handler that replaces the raw SBCL debugger with a diagnostic mes
   (format t "└─────────────────────────────────────────────┘~%")
   (format t "~%")
   (format t "Details: ~A~%" condition)
+  (format t "Backtrace:~%")
+  (sb-debug:print-backtrace :count 20 :stream *standard-output*)
   (finish-output)
   (uiop:quit 1)))
 #+end_src

passepartout

@@ -372,11 +372,12 @@ case "$COMMAND" in
         fi
         exec sbcl \
             --eval '(load (merge-pathnames "quicklisp/setup.lisp" (user-homedir-pathname)))' \
-            --eval '(ql:quickload :passepartout/tui)' \
+            --eval "(push (truename \"$PASSEPARTOUT_DATA_DIR/\") asdf:*central-registry*)" \
+            --eval '(ql:quickload :passepartout/tui :force t)' \
             --eval '(in-package :passepartout)' \
             --eval "(load (format nil \"~alisp/system-model-provider.lisp\" (truename \"$PASSEPARTOUT_DATA_DIR/\")))" \
             --eval "(load (format nil \"~alisp/system-model-explorer.lisp\" (truename \"$PASSEPARTOUT_DATA_DIR/\")))" \
-            --eval '(passepartout.gateway-tui:tui-main)'
+            --eval '(handler-bind ((undefined-function (lambda (c) (format t "~%Undefined function: ~a~%" (cell-error-name c)) (sb-debug:print-backtrace :count 20) (finish-output) (uiop:quit 1)))) (passepartout.gateway-tui:tui-main))'
         ;;
     gateway)
         SUBCMD=$1; PLATFORM=$2; TOKEN=$3