AI: Galaxy page faction bonus drawer replaces faction filter

- Removed the faction <select> filter from the Galaxy filter bar.
- Added a right-side drawer; exactly one of the three factions is
  always selected (Eden Accord default), user picks via picker.
- Drawer aggregates occupational bonuses across the selected
  faction's planets: buffs grouped by type with magnitudes summed
  (e.g. two +15% cooldown planets total +30%), plus planet counts.
- Drawer also lists the faction's planets linking to detail pages,
  and collapses via the header toggle.

ZeroSpace/ZeroSpace.Web/Pages/Galaxy.razor

@@ -1,5 +1,6 @@
 @page "/galaxy"
 @using System.Globalization
+@using System.Text.RegularExpressions
 @inject NavigationManager Navigation
 
 <PageTitle>Galaxy Map</PageTitle>
@@ -72,17 +73,6 @@
             </select>
         </div>
 
-        <div class="d-flex align-items-center gap-2 filter-item">
-            <label class="filter-label text-dim small fw-semibold text-uppercase">Faction:</label>
-            <select class="form-select form-select-sm scifi-select" @bind="_selectedOwner" @bind:after="ApplyFilters">
-                <option value="">All Factions</option>
-                @foreach (var owner in StarSystemOwners.All)
-                {
-                    <option value="@owner">@owner</option>
-                }
-            </select>
-        </div>
-
         @if (HasActiveFilters)
         {
             <button class="btn btn-sm btn-scifi-outline py-1 px-3 ms-auto" @onclick="ResetFilters">
@@ -91,6 +81,7 @@
         }
     </div>
 
+    <div class="galaxy-layout">
         <div class="galaxy-map-container" @onmouseleave="OnContainerMouseLeave">
         <svg viewBox="0 0 1000 1000" class="galaxy-svg" preserveAspectRatio="xMidYMid meet"
              xmlns="http://www.w3.org/2000/svg">
@@ -276,6 +267,80 @@
             </div>
         }
     </div>
+
+    <aside class="faction-drawer zs-glass-card @(_drawerCollapsed ? "is-collapsed" : "")" aria-label="Faction occupational bonuses">
+        <div class="drawer-header d-flex align-items-center justify-content-between gap-2">
+            <div>
+                <h2 class="drawer-title text-light fw-bold mb-0">Faction Bonuses</h2>
+                <p class="drawer-subtitle text-secondary mb-0">Occupation buffs by faction</p>
+            </div>
+            <button class="btn btn-sm btn-scifi-outline drawer-toggle" @onclick="ToggleDrawer"
+                    aria-expanded="@(!_drawerCollapsed)"
+                    title="@(_drawerCollapsed ? "Expand bonus panel" : "Collapse bonus panel")">
+                @(_drawerCollapsed ? "»" : "«")
+            </button>
+        </div>
+
+        @if (!_drawerCollapsed)
+        {
+            <div class="drawer-body">
+                <div class="faction-picker" role="radiogroup" aria-label="Select faction">
+                    @foreach (var owner in StarSystemOwners.All)
+                    {
+                        var isActive = string.Equals(owner, _selectedFaction, StringComparison.Ordinal);
+                        <button role="radio" aria-checked="@isActive"
+                                class="faction-pick @(isActive ? "is-active " + GetOwnerCssClass(owner) : "")"
+                                @onclick="() => SelectFaction(owner)">
+                            <span class="legend-dot @FactionDotClass(owner)"></span>
+                            <span class="faction-pick-name">@ShortFactionName(owner)</span>
+                            <span class="faction-pick-count">@FactionSystemCount(owner)</span>
+                        </button>
+                    }
+                </div>
+
+                <div class="drawer-section">
+                    <h3 class="drawer-section-title">Occupational bonuses</h3>
+                    <p class="drawer-summary text-secondary">
+                        <strong class="text-light">@FactionSystems.Count</strong> systems owned by
+                        <strong class="text-light">@ShortFactionName(_selectedFaction)</strong>
+                    </p>
+                    @if (FactionBonuses.Count == 0)
+                    {
+                        <p class="text-secondary small mb-0">No occupation buffs recorded for this faction's systems.</p>
+                    }
+                    else
+                    {
+                        <ul class="bonus-list list-unstyled mb-0">
+                            @foreach (var bonus in FactionBonuses)
+                            {
+                                <li class="bonus-row">
+                                    <span class="bonus-total">@FormatBonusTotal(bonus)</span>
+                                    <span class="bonus-label">@bonus.Label</span>
+                                    <span class="bonus-count">@bonus.PlanetCount @(bonus.PlanetCount == 1 ? "planet" : "planets")</span>
+                                </li>
+                            }
+                        </ul>
+                    }
+                </div>
+
+                <div class="drawer-section">
+                    <h3 class="drawer-section-title">Planets (@FactionSystems.Count)</h3>
+                    <ul class="planet-list list-unstyled mb-0">
+                        @foreach (var system in FactionSystems)
+                        {
+                            <li>
+                                <button class="planet-row" @onclick="() => OnNodeClick(system.Id)" title="View @system.Name details">
+                                    <span class="planet-name">@system.Name</span>
+                                    <span class="planet-buff">@(system.OccupationBuff ?? "—")</span>
+                                </button>
+                            </li>
+                        }
+                    </ul>
+                </div>
+            </div>
+        }
+    </aside>
+    </div>
 </div>
 
 @code {
@@ -292,14 +357,16 @@
     private StarSystemCategory? _selectedCategory;
     private string _selectedMastery = string.Empty;
     private string _selectedYield = string.Empty;
-    private string _selectedOwner = string.Empty;
     private int _matchingCount;
 
+    // Faction picker: one of the three factions is always selected.
+    private string _selectedFaction = StarSystemOwners.EdenAccord;
+    private bool _drawerCollapsed;
+
     private bool HasActiveFilters =>
         _selectedCategory.HasValue ||
         !string.IsNullOrEmpty(_selectedMastery) ||
-        !string.IsNullOrEmpty(_selectedYield) ||
+        !string.IsNullOrEmpty(_selectedYield);
-        !string.IsNullOrEmpty(_selectedOwner);
 
     protected override void OnInitialized()
     {
@@ -356,11 +423,6 @@
             else if (_selectedYield == "Items" && !system.HigherChanceForItems) return false;
         }
 
-        if (!string.IsNullOrEmpty(_selectedOwner) && !string.Equals(system.Owner, _selectedOwner, StringComparison.OrdinalIgnoreCase))
-        {
-            return false;
-        }
-
         return true;
     }
 
@@ -369,10 +431,101 @@
         _selectedCategory = null;
         _selectedMastery = string.Empty;
         _selectedYield = string.Empty;
-        _selectedOwner = string.Empty;
         ApplyFilters();
     }
 
+    // ----- faction bonus drawer -----
+
+    public sealed record FactionBonus(string Label, bool IsPercent, double Total, int PlanetCount);
+
+    private void SelectFaction(string owner)
+    {
+        if (string.Equals(_selectedFaction, owner, StringComparison.Ordinal))
+        {
+            return;
+        }
+
+        _selectedFaction = owner;
+    }
+
+    private void ToggleDrawer() => _drawerCollapsed = !_drawerCollapsed;
+
+    private int FactionSystemCount(string owner) =>
+        _systems.Count(s => string.Equals(s.Owner, owner, StringComparison.OrdinalIgnoreCase));
+
+    private IReadOnlyList<StarSystemData> FactionSystems =>
+        _systems
+            .Where(s => string.Equals(s.Owner, _selectedFaction, StringComparison.OrdinalIgnoreCase))
+            .OrderBy(s => s.Name)
+            .ToList();
+
+    /// <summary>
+    /// Groups the selected faction's occupation buffs by bonus type and sums
+    /// the magnitudes, so e.g. two "+15% cooldown reduction" planets total +30%.
+    /// </summary>
+    private IReadOnlyList<FactionBonus> FactionBonuses
+    {
+        get
+        {
+            var groups = new Dictionary<(string Label, bool IsPercent), (double Total, int Count)>();
+            foreach (var system in _systems)
+            {
+                if (!string.Equals(system.Owner, _selectedFaction, StringComparison.OrdinalIgnoreCase))
+                {
+                    continue;
+                }
+
+                if (string.IsNullOrWhiteSpace(system.OccupationBuff))
+                {
+                    continue;
+                }
+
+                var (amount, isPercent, label) = ParseOccupationBuff(system.OccupationBuff);
+                var key = (label, isPercent);
+                groups.TryGetValue(key, out var current);
+                groups[key] = (current.Total + amount, current.Count + 1);
+            }
+
+            return groups
+                .Select(g => new FactionBonus(g.Key.Label, g.Key.IsPercent, g.Value.Total, g.Value.Count))
+                .OrderByDescending(b => b.PlanetCount)
+                .ThenBy(b => b.Label)
+                .ToList();
+        }
+    }
+
+    /// <summary>Parses buffs shaped like "+50 Starting Hexite" or "+15% cooldown reduction".</summary>
+    private static (double Amount, bool IsPercent, string Label) ParseOccupationBuff(string buff)
+    {
+        var match = Regex.Match(buff.Trim(), @"^\+\s*([0-9]*\.?[0-9]+)\s*(%?)\s*(.+)$");
+        if (match.Success &&
+            double.TryParse(match.Groups[1].Value, NumberStyles.Float, CultureInfo.InvariantCulture, out var amount))
+        {
+            return (amount, match.Groups[2].Value == "%", match.Groups[3].Value.Trim());
+        }
+
+        return (0, false, buff.Trim());
+    }
+
+    private static string FormatBonusTotal(FactionBonus bonus) =>
+        $"+{bonus.Total.ToString("0.##", CultureInfo.InvariantCulture)}{(bonus.IsPercent ? "%" : string.Empty)}";
+
+    private static string ShortFactionName(string owner) => owner switch
+    {
+        StarSystemOwners.EdenAccord => "Eden Accord",
+        StarSystemOwners.KeeperCouncil => "Keeper Council",
+        StarSystemOwners.ObsidianOrder => "Obsidian Order",
+        _ => owner
+    };
+
+    private static string FactionDotClass(string owner) => owner switch
+    {
+        StarSystemOwners.EdenAccord => "dot-eden",
+        StarSystemOwners.KeeperCouncil => "dot-keeper",
+        StarSystemOwners.ObsidianOrder => "dot-obsidian",
+        _ => string.Empty
+    };
+
     private static IReadOnlyList<ConnectionEdge> BuildUniqueConnections(IReadOnlyList<StarSystemData> allSystems)
     {
         var edges = new List<ConnectionEdge>();