Economy: base-local mining loop (mine at base, any attack harvests, scheduled sieges)

Consolidate the divorced combat + economy halves into one base-local loop. BaseFieldSpawnSystem tops up RegionTag{Base} Ore nodes around the plot; harvest routes Base->shared ledger and Expedition/untagged->personal inventory for BOTH the projectile (ResourceHarvestSystem) and melee (MeleeComboSystem server-only block, writes Remaining back for VFX). Activate the reserved Schedule source in ThreatDirectorSystem so base sieges arm WITHOUT an expedition trip (the loop-closer: previously zero waves ever attacked a base-only player). Region-filter the ExpeditionFieldSystem teardown so it no longer wipes the permanent base field. HudSystem shows phase-aware loop copy. See DR-031.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Assets/_Project/Scripts/Authoring/World/CycleDirectorAuthoring.cs

@@ -30,6 +30,16 @@ namespace ProjectM.Authoring
 
         [Tooltip("Max server ticks a siege may run before it auto-collapses (no soft-lock). 0 = no cap.")]
         public uint SiegeTimeoutTicks = 3600;
+        [Header("Threat — scheduled base sieges")]
+        [Tooltip("A timed cadence arms a base siege even without an expedition trip (keeps the base loop stakeful).")]
+        public bool ScheduleEnabled = true;
+
+        [Tooltip("Server ticks (@60) between scheduled base sieges. First fire is one interval out (mine/build grace).")]
+        public uint ScheduleIntervalTicks = 2700;
+
+        [Tooltip("Extra Husks per surviving wave (siege size = SiegeSizeBase + this * WaveNumber). 0 = flat.")]
+        public int ScheduleSizePerWave = 1;
+
 
         private class CycleDirectorBaker : Baker<CycleDirectorAuthoring>
         {
@@ -53,6 +63,9 @@ namespace ProjectM.Authoring
                     SizePerExpeditionResource = authoring.SiegeSizePerResource,
                     StartCondition = ThreatStartCondition.Immediate,
                     SiegeTimeoutTicks = authoring.SiegeTimeoutTicks,
+                    ScheduleEnabled = (byte)(authoring.ScheduleEnabled ? 1 : 0),
+                    ScheduleIntervalTicks = authoring.ScheduleIntervalTicks,
+                    ScheduleSizePerWave = authoring.ScheduleSizePerWave,
                 });
             }
         }