✨ add Nisse info panel with work log (Issue #9)

Clicking a Nisse opens a top-left panel showing name, AI status,
energy bar, active job, job priority buttons, and a live work log
(last 10 of 20 runtime-only entries). Closes via ESC, ✕, or clicking
another Nisse. Dynamic parts (status/energy/job/log) refresh each
frame without rebuilding the full group.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/systems/VillagerSystem.ts

@@ -11,6 +11,8 @@ import type { FarmingSystem } from './FarmingSystem'
 
 const ARRIVAL_PX = 3
 
+const WORK_LOG_MAX = 20
+
 interface VillagerRuntime {
   sprite: Phaser.GameObjects.Image
   nameLabel: Phaser.GameObjects.Text
@@ -20,6 +22,8 @@ interface VillagerRuntime {
   destination: 'job' | 'stockpile' | 'bed' | null
   workTimer: number
   idleScanTimer: number
+  /** Runtime-only activity log; not persisted. Max WORK_LOG_MAX entries. */
+  workLog: string[]
 }
 
 export class VillagerSystem {
@@ -35,6 +39,7 @@ export class VillagerSystem {
   private nameIndex = 0
 
   onMessage?: (msg: string) => void
+  onNisseClick?: (villagerId: string) => void
 
   /**
    * @param scene        - The Phaser scene this system belongs to
@@ -139,13 +144,21 @@ export class VillagerSystem {
     // Carrying items? → find stockpile
     if (v.job?.carrying && Object.values(v.job.carrying).some(n => (n ?? 0) > 0)) {
       const sp = this.nearestBuilding(v, 'stockpile_zone')
-      if (sp) { this.beginWalk(v, rt, sp.tileX, sp.tileY, 'stockpile'); return }
+      if (sp) {
+        this.addLog(v.id, '→ Hauling to stockpile')
+        this.beginWalk(v, rt, sp.tileX, sp.tileY, 'stockpile')
+        return
+      }
     }
 
     // Low energy → find bed
     if (v.energy < 25) {
       const bed = this.findBed(v)
-      if (bed) { this.beginWalk(v, rt, bed.tileX, bed.tileY, 'bed'); return }
+      if (bed) {
+        this.addLog(v.id, '→ Going to sleep (low energy)')
+        this.beginWalk(v, rt, bed.tileX, bed.tileY, 'bed')
+        return
+      }
     }
 
     // Find a job
@@ -156,6 +169,7 @@ export class VillagerSystem {
         type: 'VILLAGER_SET_JOB', villagerId: v.id,
         job: { type: job.type, targetId: job.targetId, tileX: job.tileX, tileY: job.tileY, carrying: {} },
       })
+      this.addLog(v.id, `→ Walking to ${job.type} at (${job.tileX}, ${job.tileY})`)
       this.beginWalk(v, rt, job.tileX, job.tileY, 'job')
     } else {
       // No job available — wait before scanning again
@@ -218,10 +232,12 @@ export class VillagerSystem {
         this.adapter.send({ type: 'VILLAGER_DEPOSIT', villagerId: v.id })
         this.adapter.send({ type: 'VILLAGER_SET_AI', villagerId: v.id, aiState: 'idle' })
         rt.idleScanTimer = 0  // scan for a new job immediately after deposit
+        this.addLog(v.id, '✓ Deposited at stockpile')
         break
 
       case 'bed':
         this.adapter.send({ type: 'VILLAGER_SET_AI', villagerId: v.id, aiState: 'sleeping' })
+        this.addLog(v.id, '💤 Sleeping...')
         break
 
       default:
@@ -261,6 +277,7 @@ export class VillagerSystem {
         // Clear the FOREST tile so the area becomes passable for future pathfinding
         this.adapter.send({ type: 'CHANGE_TILE', tileX: res.tileX, tileY: res.tileY, tile: TileType.DARK_GRASS })
         this.resourceSystem.removeResource(job.targetId)
+        this.addLog(v.id, '✓ Chopped tree (+2 wood)')
       }
     } else if (job.type === 'mine') {
       const res = state.world.resources[job.targetId]
@@ -269,6 +286,7 @@ export class VillagerSystem {
         // Clear the ROCK tile so the area becomes passable for future pathfinding
         this.adapter.send({ type: 'CHANGE_TILE', tileX: res.tileX, tileY: res.tileY, tile: TileType.GRASS })
         this.resourceSystem.removeResource(job.targetId)
+        this.addLog(v.id, '✓ Mined rock (+2 stone)')
       }
     } else if (job.type === 'farm') {
       const crop = state.world.crops[job.targetId]
@@ -276,6 +294,7 @@ export class VillagerSystem {
         this.adapter.send({ type: 'VILLAGER_HARVEST_CROP', villagerId: v.id, cropId: job.targetId })
         this.farmingSystem.removeCropSpritePublic(job.targetId)
         this.adapter.send({ type: 'CHANGE_TILE', tileX: crop.tileX, tileY: crop.tileY, tile: 9 as any })
+        this.addLog(v.id, `✓ Farmed ${crop.kind}`)
       }
     }
 
@@ -304,6 +323,7 @@ export class VillagerSystem {
     if (v.energy >= 100) {
       rt.sprite.setAngle(0)
       this.adapter.send({ type: 'VILLAGER_SET_AI', villagerId: v.id, aiState: 'idle' })
+      this.addLog(v.id, '✓ Woke up (energy full)')
     }
   }
 
@@ -467,7 +487,10 @@ export class VillagerSystem {
     const energyBar = this.scene.add.graphics().setDepth(12)
     const jobIcon   = this.scene.add.text(v.x, v.y - 18, '', { fontSize: '10px' }).setDepth(13)
 
-    this.runtime.set(v.id, { sprite, nameLabel, energyBar, jobIcon, path: [], destination: null, workTimer: 0, idleScanTimer: 0 })
+    sprite.setInteractive()
+    sprite.on('pointerdown', () => this.onNisseClick?.(v.id))
+
+    this.runtime.set(v.id, { sprite, nameLabel, energyBar, jobIcon, path: [], destination: null, workTimer: 0, idleScanTimer: 0, workLog: [] })
   }
 
   /**
@@ -486,6 +509,21 @@ export class VillagerSystem {
     g.fillStyle(col);      g.fillRect(x - W/2, y - 28, W * (energy / 100), H)
   }
 
+  // ─── Work log ─────────────────────────────────────────────────────────────
+
+  /**
+   * Prepends a message to the runtime work log for the given Nisse.
+   * Trims the log to WORK_LOG_MAX entries. No-ops if the Nisse is not found.
+   * @param villagerId - Target Nisse ID
+   * @param msg        - Log message to prepend
+   */
+  private addLog(villagerId: string, msg: string): void {
+    const rt = this.runtime.get(villagerId)
+    if (!rt) return
+    rt.workLog.unshift(msg)
+    if (rt.workLog.length > WORK_LOG_MAX) rt.workLog.length = WORK_LOG_MAX
+  }
+
   // ─── Public API ───────────────────────────────────────────────────────────
 
   /**
@@ -506,6 +544,15 @@ export class VillagerSystem {
     return '💭 Idle'
   }
 
+  /**
+   * Returns a copy of the runtime work log for the given Nisse (newest first).
+   * @param villagerId - The Nisse's ID
+   * @returns Array of log strings, or empty array if not found
+   */
+  getWorkLog(villagerId: string): string[] {
+    return [...(this.runtime.get(villagerId)?.workLog ?? [])]
+  }
+
   /**
    * Returns the current world position and remaining path for every Nisse
    * that is currently in the 'walking' state. Used by DebugSystem for