reorg: tangle to XDG, remove stale lisp files, fix tui input

- Changed all 50 org file :tangle targets from ../lisp/ to
  ~/.local/share/passepartout/lisp/ (XDG data dir)
- Removed 49 generated .lisp files from project lisp/ directory
- Removed tests/system-integration-tests.lisp (generated)
- Removed lisp/*.fasl (compiled, stale)
- Updated core-manifest.org to tangle .asd to XDG root
- Remapped quicklisp symlink: local-projects/passepartout → XDG

TUI fixes in channel-tui-main.org:
- Removed with-raw-terminal (stty raw breaks fd 0 reads in this SBCL)
- Use cat subprocess + pipe for keyboard input (via :input :interactive)
- Blocking read-char on pipe with with-timeout 0.1s for daemon processing
- Key events queued via drain-queue alongside daemon messages
- Full dialog key routing (Escape, Up/Down, Enter, filters, Backspace)
- SIGWINCH resize handling
- Post-handshake backend-size re-query
- Daemon version in status bar (was v0.5.0 hardcoded)
- Handshake version stored in state, no add-msg
- :daemon-version and :size-queried in state plist
- view-status uses draw-rect for background
- Test section gated with #+passepartout-tests

lisp/channel-slack.lisp

@@ -1,45 +0,0 @@
-(in-package :passepartout)
-(defun slack-get-token ()
-  (vault-get-secret :slack))
-
-(defun slack-send (action context)
-  "Sends a message via Slack Web API."
-  (declare (ignore context))
-  (let* ((payload (getf action :payload))
-         (meta (getf action :meta))
-         (channel (or (getf meta :channel-id) (getf payload :chat-id)))
-         (text (or (getf payload :text) (getf action :text)))
-         (token (slack-get-token)))
-    (when (and token channel text)
-      (handler-case
-          (dex:post "https://slack.com/api/chat.postMessage"
-                    :headers `(("Authorization" . ,(format nil "Bearer ~a" token))
-                               ("Content-Type" . "application/json; charset=utf-8"))
-                    :content (cl-json:encode-json-to-string
-                              `((channel . ,channel) (text . ,text))))
-        (error (c) (log-message "SLACK ERROR: ~a" c))))))
-
-(defun slack-poll ()
-  "Polls Slack for new messages via conversations.history."
-  (let* ((token (slack-get-token)))
-    (when token
-      (dolist (channel '("general"))  ;; configured channel IDs
-        (handler-case
-            (let* ((url (format nil "https://slack.com/api/conversations.history?channel=~a&limit=5" channel))
-                   (response (dex:get url :headers
-                                       `(("Authorization" . ,(format nil "Bearer ~a" token))))))
-              (let* ((json (ignore-errors (cl-json:decode-json-from-string response)))
-                     (ok (cdr (assoc :ok json)))
-                     (messages (cdr (assoc :messages json))))
-                (when (and ok messages (listp messages))
-                  (dolist (msg messages)
-                    (let* ((text (cdr (assoc :text msg)))
-                           (user (cdr (assoc :user msg)))
-                           (ts (cdr (assoc :ts msg))))
-                      (when (and text user (not (string= user "USLACKBOT")))
-                        (unless (ignore-errors (hitl-handle-message text :slack))
-                          (stimulus-inject
-                           (list :type :EVENT
-                                 :meta (list :source :slack :chat-id channel)
-                                 :payload (list :sensor :user-input :text text))))))))))
-          (error (c) (log-message "SLACK POLL ERROR: ~a" c)))))))