add ship stats panel to ship layout dialog

docs/requirements.md

@@ -222,11 +222,30 @@ Modules in `modules.toml` define a `surface_mask` — a list of strings that des
 - REQ-MOD-UI-DIALOG: Clicking the "Configure" button opens the **layout configuration dialog** as a modal. While the dialog is open, the game is paused (speed set to 0×). On close, the game speed is restored to what it was before the dialog was opened.
 
   The dialog contains:
-  - **Left**: The ship's layout grid rendered at full scale. Buildable cells are white; non-buildable cells are black. Placed modules are rendered with their `fill_color` and `glyph`. The ghost of the currently selected module is shown at the cursor position when in placement mode.
-  - **Center**: A grid of module selection buttons (one per module type defined in `modules.toml`) plus a "Remove" button. Each module button shows the module id and its glyph.
-  - **Right**: The layout blueprint panel (see REQ-MOD-UI-BLUEPRINT-PANEL through REQ-MOD-UI-BLUEPRINT-FILE-LOAD).
+  - **Top**: The ship's layout grid rendered at full scale. Buildable cells are white; non-buildable cells are black. Placed modules are rendered with their `fill_color` and `glyph`. The ghost of the currently selected module is shown at the cursor position when in placement mode.
+  - **Left** (below the grid): The ship stats panel (see REQ-MOD-UI-STATS-PANEL).
+  - **Center** (below the grid): A grid of module selection buttons (one per module type defined in `modules.toml`) plus a "Remove" button. Each module button shows the module id and its glyph.
+  - **Right** (below the grid): The layout blueprint panel (see REQ-MOD-UI-BLUEPRINT-PANEL through REQ-MOD-UI-BLUEPRINT-FILE-LOAD).
   - **Bottom**: A "Confirm" button and a "Cancel" button. Cancel discards all changes made in this dialog session and closes the dialog. Confirm applies the changes: the shipyard's configured layout is updated, the required materials and cycle time displayed in the selected building panel are recalculated, and the ship layout preview is refreshed.
 
+- REQ-MOD-UI-STATS-PANEL: The **ship stats panel** in the layout configuration dialog shows the stats of the currently configured ship layout as they would be computed at the schematic's `player_production_level`, incorporating all passive module modifiers per REQ-MOD-STAT-CALC. The panel updates in real time whenever modules are placed or removed in the layout grid.
+
+  The panel always shows all hull stats as final computed values:
+  - HP
+  - Max linear speed
+  - Sensor range
+  - Main acceleration
+  - Maneuvering acceleration
+  - Angular acceleration
+  - Max rotation speed
+
+  In addition, the panel shows capability module stats conditioned on which capability module types are present in the current layout:
+  - **Weapons** (shown only if at least one weapon module is placed): combined DPS = Σ(damage_i × attack_rate_i) across all weapon module instances; maximum range = max(attack_range_i) across all weapon module instances.
+  - **Salvage** (shown only if at least one salvage module is placed): combined collection rate = Σ(collection_rate_i) across all salvage module instances; maximum range = max(collection_range_i) across all salvage module instances.
+  - **Repair** (shown only if at least one repair module is placed): combined repair rate = Σ(repair_rate_i) across all repair module instances; maximum range = max(repair_range_i) across all repair module instances.
+
+  All capability module stat values incorporate passive modifiers targeting the relevant capability category per REQ-MOD-STAT-CALC. Each capability module instance uses its own `player_production_level` for formula evaluation.
+
 - REQ-MOD-UI-LAYOUT-SIZE: Ship layouts are small enough to display in the layout configuration dialog without scrolling (maximum grid size fits within the dialog).
 
 ### Layout Blueprints