Add interactive map viewer journal page (Phase 1)

Register a custom JournalPageSheet for image-type journal pages that
provides an interactive map viewer with pin placement, zoom/pan, and
real-time Foundry socket sync between clients.

Features:
- 6 pin types (location, danger, treasure, quest, note, text) with
  colored icons matching Chronicle's marker categories
- Mouse wheel zoom (0.25x-4x) with cursor-anchored scaling
- Click-drag pan navigation with fit-to-view
- Pin placement via toolbar selection + map click
- Drag pins to reposition (coordinates stored as 0-100%)
- Right-click pin to open config dialog (label, type, description,
  visibility, journal link)
- Double-click pin to open linked JournalEntry
- GM-only pin visibility toggle
- Toggle pin labels on/off
- Real-time multi-client sync via Foundry socket channel
- PinConfigDialog using ApplicationV2/HandlebarsApplicationMixin pattern

New files:
- scripts/map-viewer.mjs (MapViewerSheet + PinConfigDialog)
- templates/map-viewer.hbs (viewer template)
- templates/pin-config.hbs (pin config dialog template)
- styles/map-viewer.css (all styles scoped to .chronicle-map-viewer)

Modified files:
- scripts/module.mjs (import + register sheet in init hook)
- scripts/map-sync.mjs (export PIN_ICONS for reuse)
- module.json (add map-viewer.css to styles)
- lang/en.json (add MapViewer i18n strings)

https://claude.ai/code/session_01WgrfTebnxho2b8nLgnA8eb

Author: claude

lang/en.json

@@ -179,6 +179,32 @@
         "Reconnect": "Reconnect"
       }
     },
+    "MapViewer": {
+      "SheetLabel": "Chronicle Map Viewer",
+      "PlacePin": "Click map to place pin",
+      "PinConfig": "Configure Pin",
+      "PinLabel": "Label",
+      "PinType": "Type",
+      "PinDescription": "Description",
+      "PinShared": "Visible to players",
+      "PinLinkedJournal": "Linked Journal",
+      "PinSave": "Save",
+      "PinDelete": "Delete Pin",
+      "PinDeleteConfirm": "Delete this pin?",
+      "ZoomIn": "Zoom In",
+      "ZoomOut": "Zoom Out",
+      "ZoomReset": "Reset Zoom",
+      "FitView": "Fit to View",
+      "ToggleLabels": "Toggle Labels",
+      "PinTypes": {
+        "location": "Location",
+        "danger": "Danger",
+        "treasure": "Treasure",
+        "quest": "Quest",
+        "note": "Note",
+        "text": "Text Label"
+      }
+    },
     "Wizard": {
       "Title": "Chronicle Import Wizard",
       "OpenWizard": "Setup Wizard",

module.json

@@ -23,7 +23,8 @@
   ],
   "styles": [
     "styles/chronicle-sync.css",
-    "styles/import-wizard.css"
+    "styles/import-wizard.css",
+    "styles/map-viewer.css"
   ],
   "languages": [
     {

scripts/map-sync.mjs

@@ -611,7 +611,7 @@ export class MapSync {
  * Pin category → Foundry icon and color mapping.
  * Icons are from Foundry's bundled icon set.
  */
-const PIN_ICONS = {
+export const PIN_ICONS = {
   location: { icon: 'icons/svg/village.svg', color: '#3B82F6', faIcon: 'fa-map-pin' },
   danger:   { icon: 'icons/svg/skull.svg',   color: '#EF4444', faIcon: 'fa-skull' },
   treasure: { icon: 'icons/svg/chest.svg',   color: '#F59E0B', faIcon: 'fa-gem' },