feat(modal): add edit mode with anchored dropdowns and keyboard workflow

- Add TaskDetailModal edit mode with form validation, tags + annotations editing, and SaveEdits event
- Anchor dropdown/suggestion menus using deferred/anchored overlay to avoid clipping
- Add modal-specific keymap contexts (ModalInput/ModalDropdown) for Esc/Ctrl+Enter/Tab navigation
- Refresh modal project suggestions from tasks; improve project child filtering boundary match
- Small UI polish (toast styling, layout spacing) and update shortcuts docs

src/keymap/context.rs

@@ -6,6 +6,8 @@ pub enum ContextId {
     SidebarProjects,
     SidebarTags,
     Modal,
+    ModalInput,
+    ModalDropdown,
     FilterBar,
     TextInput,
 }
@@ -19,6 +21,8 @@ impl ContextId {
             "sidebarprojects" | "SidebarProjects" => Some(Self::SidebarProjects),
             "sidebartags" | "SidebarTags" => Some(Self::SidebarTags),
             "modal" | "Modal" => Some(Self::Modal),
+            "modalinput" | "ModalInput" => Some(Self::ModalInput),
+            "modaldropdown" | "ModalDropdown" => Some(Self::ModalDropdown),
             "filterbar" | "FilterBar" => Some(Self::FilterBar),
             "textinput" | "TextInput" => Some(Self::TextInput),
             _ => None,
@@ -33,6 +37,8 @@ impl ContextId {
             Self::SidebarProjects => "SidebarProjects",
             Self::SidebarTags => "SidebarTags",
             Self::Modal => "Modal",
+            Self::ModalInput => "ModalInput",
+            Self::ModalDropdown => "ModalDropdown",
             Self::FilterBar => "FilterBar",
             Self::TextInput => "TextInput",
         }

src/keymap/defaults.rs

@@ -429,5 +429,77 @@ pub fn build_default_keymap() -> KeymapLayer {
         Command::SaveModal,
     );
 
+    layer.bind(
+        ContextId::ModalInput,
+        KeyChord::new(Key::Escape, Mods::none()),
+        Command::CloseModal,
+    );
+    layer.bind(
+        ContextId::ModalInput,
+        KeyChord::new(Key::Enter, Mods::ctrl()),
+        Command::SaveModal,
+    );
+    layer.bind(
+        ContextId::ModalInput,
+        KeyChord::new(Key::Tab, Mods::none()),
+        Command::FocusFilterNext,
+    );
+    layer.bind(
+        ContextId::ModalInput,
+        KeyChord::new(Key::Tab, Mods::shift()),
+        Command::FocusFilterPrev,
+    );
+
+    layer.bind(
+        ContextId::ModalDropdown,
+        KeyChord::new(Key::Escape, Mods::none()),
+        Command::CloseModal,
+    );
+    layer.bind(
+        ContextId::ModalDropdown,
+        KeyChord::new(Key::Enter, Mods::ctrl()),
+        Command::SaveModal,
+    );
+    layer.bind(
+        ContextId::ModalDropdown,
+        KeyChord::new(Key::Enter, Mods::none()),
+        Command::ToggleDropdown,
+    );
+    layer.bind(
+        ContextId::ModalDropdown,
+        KeyChord::new(Key::Space, Mods::none()),
+        Command::ToggleDropdown,
+    );
+    layer.bind(
+        ContextId::ModalDropdown,
+        KeyChord::new(Key::Char('j'), Mods::none()),
+        Command::SelectNextOption,
+    );
+    layer.bind(
+        ContextId::ModalDropdown,
+        KeyChord::new(Key::Char('k'), Mods::none()),
+        Command::SelectPrevOption,
+    );
+    layer.bind(
+        ContextId::ModalDropdown,
+        KeyChord::new(Key::ArrowDown, Mods::none()),
+        Command::SelectNextOption,
+    );
+    layer.bind(
+        ContextId::ModalDropdown,
+        KeyChord::new(Key::ArrowUp, Mods::none()),
+        Command::SelectPrevOption,
+    );
+    layer.bind(
+        ContextId::ModalDropdown,
+        KeyChord::new(Key::Tab, Mods::none()),
+        Command::FocusFilterNext,
+    );
+    layer.bind(
+        ContextId::ModalDropdown,
+        KeyChord::new(Key::Tab, Mods::shift()),
+        Command::FocusFilterPrev,
+    );
+
     layer
 }