shell: widen spotlight's launcher schema for phase 6c (modes/sections/search geometry)

[launcher].modes now lists calc/cmd/url alongside apps, sections is
enabled, and two new keys (search_width/search_radius) let an embedded
launcher theme declare its search-state capsule geometry, defaulting to
the idle value when a theme omits them. Also gives spotlight's [bar.slots]
a widget:left_of_stats entry so a Lua widget requesting that placement
(e.g. git-branch-widget.lua) has a home instead of being silently dropped.

bread-theme/assets/shell/spotlight/theme.toml

@@ -14,16 +14,13 @@
 # palette's `pink` token for both accent_from and accent_to, never a literal
 # hex value).
 #
-# What this builtin does NOT model (THEME_SYSTEM_PLAN.md phase 6 scope, task
-# "OUT OF SCOPE" list — deferred to phase 6c): query modes (`=` calc, `>`
-# command, `.` url) and result sections ("recent"/"apps") — `modes` stays
-# `["apps"]` and `sections` stays `false`, same trivial values every other
-# builtin already carries. The demo's `.searching .capsule { border-radius:
-# 20px }` (22px collapsed, 20px while actively searching) also has no
-# corresponding schema key — `[launcher].radius` is a single value, so this
-# builtin uses the collapsed 22px; the 2px searching-state shrink is an
-# unmodeled gap, not an oversight (see breadbar's launcher_entry/results
-# task notes for where this is implemented in Rust instead).
+# Phase 6c (this pass): query modes (`=` calc, `>` command, `.` url) and
+# result sections ("recent"/"apps") are now implemented — `modes` lists all
+# four and `sections` is `true`. The demo's `.searching .capsule` state
+# (480px -> 520px width, 22px -> 20px radius) is modeled via two new
+# `[launcher]` keys, `search_width`/`search_radius`, read only by
+# `LauncherMode::Embedded` hosts (breadbar's capsule; unread by breadbox's
+# overlay window, which stays `mode = "overlay"`).
 
 name = "Spotlight"
 id   = "spotlight"
@@ -84,7 +81,19 @@ layer     = "top"
 [bar.slots]
 left   = ["workspaces"]
 centre = ["launcher_entry"]
-right  = ["battery"]
+# `widget:left_of_stats` (Phase 6c decision, see task notes): a Lua widget
+# that requests this same placement (`bread-shared`'s `WidgetPlacement::
+# LeftOfStats`, e.g. a real user's `git-branch-widget.lua`) would otherwise
+# be silently undeliverable under spotlight — no `[bar.slots]` entry named
+# any `widget:*` key at all, so `reconcile_widgets` drops it every time
+# (quietly, since the Phase 6b fix, but still dropped). Deliberately just
+# this one alias, not all five liquid-motion carries: spotlight has no
+# clock module to anchor `left_of_clock`/`right_of_clock` against and no
+# workspace-adjacent affordance next to its compact dots, so adding those
+# would clutter a launcher-focused capsule with slots nothing here asks
+# for. `left_of_stats` sits right where `battery` already does, matching
+# liquid-motion's own ordering (`widget:left_of_stats` before its module).
+right  = ["widget:left_of_stats", "battery"]
 drawer = ["launcher_results"]
 
 [modules.workspaces]
@@ -118,8 +127,21 @@ icon_px  = 22
 row_anim = "none"
 rule     = "none"
 footer   = "count_apps"
-sections = false
-modes    = ["apps"]
+# Phase 6c: "recent" / "apps" headers in the idle (empty-query) drawer view
+# — `bread_launcher::split_sections` groups the same already-loaded/sorted
+# entries `LaunchHistory`'s counts already rank, no new tracking needed.
+sections = true
+# `04-spotlight.html`'s three prefixes: `=` calc, `>` command, `.` url —
+# `bread_launcher::parse_query`/`eval_calc`/`filter_commands` implement the
+# pure logic; breadbar's capsule wiring (main.rs) gates on this list so an
+# unlisted prefix character just falls through to a literal "apps" query.
+modes    = ["apps", "calc", "cmd", "url"]
+# `04-spotlight.html`: `.searching .capsule { width: 520px; border-radius:
+# 20px }` vs the idle 480px/22px above — animated via
+# `bread_theme::anim::spring_to` (width) and a `.searching` CSS class
+# (radius) in breadbar's capsule wiring.
+search_width  = 520
+search_radius = 20
 
 # Same five satellite namespaces as liquid-motion/glass-workbench, keyed
 # identically. This bar's edge sits at margin.top(16) + height(36) = 52px —

bread-theme/src/shell/manifest.rs

@@ -185,6 +185,8 @@ pub(super) struct RawLauncher {
     pub(super) footer: Option<String>,
     pub(super) sections: Option<bool>,
     pub(super) modes: Option<Vec<String>>,
+    pub(super) search_width: Option<i64>,
+    pub(super) search_radius: Option<i64>,
 }
 
 #[derive(Debug, serde::Deserialize)]
@@ -374,13 +376,15 @@ fn resolve_launcher(theme_id: &str, l: Option<&RawLauncher>) -> anyhow::Result<L
             bail!("theme '{theme_id}': launcher.mode = \"{other}\" is not overlay|embedded")
         }
     };
+    let width = l.and_then(|l| l.width).unwrap_or(540) as i32;
+    let radius = l.and_then(|l| l.radius).unwrap_or(20) as i32;
     Ok(Launcher {
         mode,
-        width: l.and_then(|l| l.width).unwrap_or(540) as i32,
+        width,
         top: l
             .and_then(|l| l.top.clone())
             .unwrap_or_else(|| "16%".to_string()),
-        radius: l.and_then(|l| l.radius).unwrap_or(20) as i32,
+        radius,
         icon_px: l.and_then(|l| l.icon_px).unwrap_or(36) as i32,
         row_anim: l
             .and_then(|l| l.row_anim.clone())
@@ -395,6 +399,11 @@ fn resolve_launcher(theme_id: &str, l: Option<&RawLauncher>) -> anyhow::Result<L
         modes: l
             .and_then(|l| l.modes.clone())
             .unwrap_or_else(|| vec!["apps".to_string()]),
+        // Default to the idle value — a theme that never sets these gets
+        // "no change while searching", not a hardcoded widen/shrink it
+        // never asked for (see the field docs on `Launcher`).
+        search_width: l.and_then(|l| l.search_width).map(|v| v as i32).unwrap_or(width),
+        search_radius: l.and_then(|l| l.search_radius).map(|v| v as i32).unwrap_or(radius),
     })
 }
 

bread-theme/src/shell/mod.rs

@@ -783,6 +783,56 @@ mod tests {
         );
     }
 
+    #[test]
+    fn spotlight_launcher_widget_slot_gives_left_of_stats_widgets_a_home() {
+        let theme = load_named(builtin::SPOTLIGHT_ID).expect("spotlight should resolve");
+        assert!(
+            theme
+                .slots()
+                .right
+                .iter()
+                .any(|s| s == "widget:left_of_stats"),
+            "a Lua widget requesting WidgetPlacement::LeftOfStats (e.g. \
+             git-branch-widget.lua) must have a home under spotlight: {:?}",
+            theme.slots().right
+        );
+    }
+
+    #[test]
+    fn spotlight_query_modes_and_sections_are_enabled_phase_6c() {
+        let theme = load_named(builtin::SPOTLIGHT_ID).expect("spotlight should resolve");
+        let l = theme.launcher();
+        assert!(l.sections, "phase 6c: recent/apps headers are implemented");
+        for mode in ["apps", "calc", "cmd", "url"] {
+            assert!(
+                l.modes.iter().any(|m| m == mode),
+                "spotlight.modes should list \"{mode}\": {:?}",
+                l.modes
+            );
+        }
+    }
+
+    #[test]
+    fn spotlight_launcher_search_state_geometry_differs_from_idle() {
+        let theme = load_named(builtin::SPOTLIGHT_ID).expect("spotlight should resolve");
+        let l = theme.launcher();
+        assert_eq!(l.width, 480);
+        assert_eq!(l.search_width, 520);
+        assert_eq!(l.radius, 22);
+        assert_eq!(l.search_radius, 20);
+    }
+
+    #[test]
+    fn launcher_search_geometry_defaults_to_idle_values_when_unset() {
+        // liquid-motion's own [launcher] table never sets search_width/
+        // search_radius — a theme that omits them must fall back to "no
+        // change while searching", not some hardcoded magic number.
+        let theme = resolve_builtin();
+        let l = theme.launcher();
+        assert_eq!(l.search_width, l.width);
+        assert_eq!(l.search_radius, l.radius);
+    }
+
     #[test]
     fn spotlight_workspaces_are_dots_with_the_demos_own_widths() {
         let theme = load_named(builtin::SPOTLIGHT_ID).expect("spotlight should resolve");

bread-theme/src/shell/types.rs

@@ -178,6 +178,19 @@ pub struct Launcher {
     pub footer: String,
     pub sections: bool,
     pub modes: Vec<String>,
+    /// `LauncherMode::Embedded` only (theme 04/spotlight, plan §7 phase 6c):
+    /// the capsule's own width while a search is in progress
+    /// (`04-spotlight.html`: `.searching .capsule { width: 520px }` vs the
+    /// idle 480px). Defaults to `width` (no widen) for a theme that omits
+    /// it, so an `Overlay`-mode theme — which never reads this field at all
+    /// — and an `Embedded` theme that just doesn't want the widen both fall
+    /// back to "no change" rather than a hardcoded magic number.
+    pub search_width: i32,
+    /// `LauncherMode::Embedded` only: `border-radius` while searching
+    /// (`04-spotlight.html`: `.searching .capsule { border-radius: 20px }`
+    /// vs the collapsed 22px `radius`). Same default-to-`radius` fallback
+    /// reasoning as `search_width`.
+    pub search_radius: i32,
 }
 
 /// A satellite surface, keyed by layer-shell namespace in `[surfaces.*]` —