feat(keymap): add AnyChar pattern and new mode variants

Add AnyChar key pattern for text-entry modes that matches any Char key.

Add new mode variants to ModeKey: FormulaPanel, CategoryPanel, ViewPanel,
TileSelect, Editing, FormulaEdit, CategoryAdd, ItemAdd, ExportPrompt,
CommandMode, and SearchMode.

Update Keymap::lookup to fall back to AnyChar for Char keys.
Update KeymapSet::get to accept search_mode parameter.

Co-Authored-By: fiddlerwoaroof/git-smart-commit (unsloth/Qwen3.5-35B-A3B-GGUF:Q5_K_M)

src/command/keymap.rs

@@ -6,6 +6,7 @@ use crossterm::event::{KeyCode, KeyModifiers};
 
 use crate::ui::app::AppMode;
 use crate::ui::effect::Effect;
+use crate::view::Axis;
 
 use super::cmd::{self, Cmd, CmdContext};
 
@@ -14,6 +15,9 @@ use super::cmd::{self, Cmd, CmdContext};
 pub enum KeyPattern {
     /// Single key with modifiers
     Key(KeyCode, KeyModifiers),
+    /// Matches any Char key (for text-entry modes). The actual char
+    /// is available in CmdContext::key_code.
+    AnyChar,
 }
 
 /// Identifies which mode a binding applies to.
@@ -22,14 +26,35 @@ pub enum KeyPattern {
 pub enum ModeKey {
     Normal,
     Help,
-    // More modes can be added as we migrate handlers
+    FormulaPanel,
+    CategoryPanel,
+    ViewPanel,
+    TileSelect,
+    Editing,
+    FormulaEdit,
+    CategoryAdd,
+    ItemAdd,
+    ExportPrompt,
+    CommandMode,
+    SearchMode,
 }
 
 impl ModeKey {
-    pub fn from_app_mode(mode: &AppMode) -> Option<Self> {
+    pub fn from_app_mode(mode: &AppMode, search_mode: bool) -> Option<Self> {
         match mode {
+            AppMode::Normal if search_mode => Some(ModeKey::SearchMode),
             AppMode::Normal => Some(ModeKey::Normal),
             AppMode::Help => Some(ModeKey::Help),
+            AppMode::FormulaPanel => Some(ModeKey::FormulaPanel),
+            AppMode::CategoryPanel => Some(ModeKey::CategoryPanel),
+            AppMode::ViewPanel => Some(ModeKey::ViewPanel),
+            AppMode::TileSelect => Some(ModeKey::TileSelect),
+            AppMode::Editing { .. } => Some(ModeKey::Editing),
+            AppMode::FormulaEdit { .. } => Some(ModeKey::FormulaEdit),
+            AppMode::CategoryAdd { .. } => Some(ModeKey::CategoryAdd),
+            AppMode::ItemAdd { .. } => Some(ModeKey::ItemAdd),
+            AppMode::ExportPrompt { .. } => Some(ModeKey::ExportPrompt),
+            AppMode::CommandMode { .. } => Some(ModeKey::CommandMode),
             _ => None,
         }
     }
@@ -77,9 +102,22 @@ impl Keymap {
     pub fn lookup(&self, key: KeyCode, mods: KeyModifiers) -> Option<&dyn Cmd> {
         self.bindings
             .get(&KeyPattern::Key(key, mods))
+            .or_else(|| {
+                // Fall back to AnyChar for text-entry modes
+                if matches!(key, KeyCode::Char(_)) {
+                    self.bindings.get(&KeyPattern::AnyChar)
+                } else {
+                    None
+                }
+            })
             .map(|c| c.as_ref())
     }
 
+    /// Bind a catch-all for any Char key (used for text-entry modes).
+    pub fn bind_any_char(&mut self, cmd: impl Cmd + 'static) {
+        self.bindings.insert(KeyPattern::AnyChar, Arc::new(cmd));
+    }
+
     /// Execute a keymap lookup and return effects, or None if no binding.
     pub fn dispatch(
         &self,
@@ -133,8 +171,8 @@ impl KeymapSet {
     }
 
     /// Look up the root keymap for a given app mode.
-    pub fn get(&self, mode: &AppMode) -> Option<&Arc<Keymap>> {
-        let mode_key = ModeKey::from_app_mode(mode)?;
+    pub fn get(&self, mode: &AppMode, search_mode: bool) -> Option<&Arc<Keymap>> {
+        let mode_key = ModeKey::from_app_mode(mode, search_mode)?;
         self.mode_maps.get(&mode_key)
     }
 
@@ -145,7 +183,7 @@ impl KeymapSet {
         key: KeyCode,
         mods: KeyModifiers,
     ) -> Option<Vec<Box<dyn Effect>>> {
-        let keymap = self.get(ctx.mode)?;
+        let keymap = self.get(ctx.mode, ctx.search_mode)?;
         keymap.dispatch(ctx, key, mods)
     }