v0.8.3: TUI stabilization — box calls, package fixes, sandbox, configure

Bug fixes:
- Fix box() calls: set color-pair before box, pass ACS default chtype integers
- Fix markdown functions: move to passepartout.channel-tui package where
  Croatoan is imported; use add-attributes/remove-attributes instead of
  :bold/:underline kwargs to add-string; call theme-color in gate-trace-lines
  to convert theme keys to Croatoan colors
- Fix sandbox: remove dex:get/dex:post from restricted symbols
  (blocked neuro-provider from loading)
- Export *log-lock* from passepartout (was unbound in jailed skill packages)
- Fix configure: always deploy to XDG, skip cp when source==dest
- Fix bash crash handler format string (~~ escaping)
- Revert test reorder in 28 files (caused package leakage in skill loader)

Design cleanup:
- Extract tui-run-screen from tui-main for clean separation
- Remove inject-stimulus alias
- Merge *backend-registry* into *probabilistic-backends*
- Fix read-framed-message whitespace DoS (4096-iteration max)
- Add *read-eval* nil to dispatcher-approvals-process read-from-string

lisp/symbolic-scope.lisp

@@ -1,45 +1,3 @@
-(eval-when (:compile-toplevel :load-toplevel :execute)
-  (ql:quickload :fiveam :silent t))
-
-(defpackage :passepartout-context-tests
-  (:use :cl :passepartout)
-  (:export #:context-suite))
-
-(in-package :passepartout-context-tests)
-
-(fiveam:def-suite context-suite :description "Context manager verification")
-(fiveam:in-suite context-suite)
-
-(fiveam:test test-push-pop-context
-  "Contract 1-2: push-context and pop-context maintain stack order."
-  (let* ((pkg (find-package "PASSEPARTOUT.SKILLS.SYSTEM-CONTEXT-MANAGER"))
-         (stack-var (and pkg (find-symbol "*CONTEXT-STACK*" pkg)))
-         (pf-var (and pkg (find-symbol "*CONTEXT-PERSISTENCE-FILE*" pkg))))
-    (when stack-var
-      (setf (symbol-value stack-var) nil)
-      (push-context :project "testapp" :base-path "/tmp" :scope :project)
-      (fiveam:is (= 1 (length (symbol-value stack-var))))
-      (fiveam:is (string= "testapp" (getf (car (symbol-value stack-var)) :project)))
-      (pop-context)
-      (fiveam:is (null (symbol-value stack-var))))))
-
-(fiveam:test test-context-save-load
-  "Contract 3-4: context-save and context-load round-trip."
-  (let* ((pkg (find-package "PASSEPARTOUT.SKILLS.SYSTEM-CONTEXT-MANAGER"))
-         (stack-var (and pkg (find-symbol "*CONTEXT-STACK*" pkg)))
-         (pf-var (and pkg (find-symbol "*CONTEXT-PERSISTENCE-FILE*" pkg))))
-    (when (and stack-var pf-var)
-      (let* ((tmpfile (merge-pathnames "test-context.lisp" (uiop:temporary-directory))))
-        (setf (symbol-value pf-var) tmpfile)
-        (setf (symbol-value stack-var) (list '(:project "test" :base-path "/tmp" :scope :project)))
-        (context-save)
-        (fiveam:is (probe-file tmpfile))
-        (setf (symbol-value stack-var) nil)
-        (context-load)
-        (fiveam:is (= 1 (length (symbol-value stack-var))))
-        (fiveam:is (string= "test" (getf (car (symbol-value stack-var)) :project)))
-        (ignore-errors (delete-file tmpfile))))))
-
 (in-package :passepartout)
 
 (defvar *context-stack* nil