wip: unified minibuffer panel, v0.9.1 Emacs dev env in ROADMAP

- Unified minibuffer slash-command panel (panel-based wizard, settings,
  help sub-mode stack) — channel-tui state/view changes
- ROADMAP: v0.8.0 broken into atomic DONE items, v0.9.1 added with
  Emacs major mode + M-x command surface TODOs
- Semver discipline from v0.7.1 onward (X.Y.Z)

lisp/channel-tui-state.lisp

@@ -137,8 +137,14 @@ See *tui-theme-presets* for named presets (dark, light, solarized, gruvbox).")
       key)))
 
 (defun theme-color (role)
-  "Returns the Croatoan color for a semantic role."
-  (or (getf *tui-theme* role) :white))
+  "Returns the Croatoan color for a semantic role.
+   Keyword or hex string values are returned as-is; hex strings are
+   converted to integers that Croatoan can process."
+  (let ((val (or (getf *tui-theme* role) :white)))
+    (if (and (stringp val) (> (length val) 0) (eql (char val 0) #\#))
+        (handler-case (parse-integer (subseq val 1) :radix 16)
+          (error () val))
+        val)))
 
 ;; v0.8.0: TrueColor helpers
 (defun theme-hex-to-rgb (hex-string)
@@ -182,12 +188,14 @@ See *tui-theme-presets* for named presets (dark, light, solarized, gruvbox).")
               :search-mode nil :search-query ""           ; v0.7.2
               :search-matches nil :search-match-idx 0
               :sidebar-visible nil                        ; v0.8.0
-              :palette-visible nil :palette-filter nil    ; v0.8.0
-              :palette-selected-idx 0 :palette-items nil  ; v0.8.0
-              :wizard-step 0 :wizard-error nil             ; v0.8.0
-              :wizard-visible nil :wizard-input ""        ; v0.8.0
-              :wizard-provider nil :wizard-api-key nil    ; v0.8.0
-              :wizard-memory nil                          ; v0.8.0
+              :minibuffer-mode nil :minibuffer-selected-idx 0 ; v0.8.0
+              :minibuffer-filter ""                         ; v0.8.0
+              :wizard-mode :provider-list                  ; v0.9.0
+              :wizard-selected-idx 0 :wizard-input ""        ; v0.9.0
+              :wizard-error nil                              ; v0.9.0
+              :wizard-providers nil :wizard-current-provider nil ; v0.9.0
+              :wizard-cascade '(:fg-prob nil :bg-prob nil :fg-det nil :bg-det nil) ; v0.9.0
+              :wizard-cascade-slot :fg-prob                  ; v0.9.0
               :dirty (list nil nil nil))))
 
 (defun now ()