0.10.0: Archify Sync, optional live collaboration on a model

Several people edit one model at once through a server you run yourself
(archify-vscode-ext-sync); the files stay ordinary files on each disk.
Sign-in through the browser, offline-first with later merge, teammates'
cursors in the Source view and text editors, and a Shared section on the
model page with people, versions, Compare and Restore.

Without a server nothing changes: the sync code is a separate bundle that
loads only when a model is shared, after a sign-in, or when a sync command
or invite link is used.

package.json

@@ -2,7 +2,7 @@
   "name": "archify-vscode-ext",
   "displayName": "Archify Diagram Viewer",
   "description": "Archify diagrams in VS Code. Write diagrams as .archify files in YAML: they open as the interactive diagram, with live updates, validation, templates and completion. Also previews Archify's own JSON files (*.architecture.json, …) and opens rendered Archify HTML.",
-  "version": "0.9.3",
+  "version": "0.10.0",
   "publisher": "root-at-skic",
   "license": "MIT",
   "sponsor": {
@@ -45,7 +45,8 @@
     "workspaceContains:**/*.{archify,architecture.json,workflow.json,sequence.json,dataflow.json,lifecycle.json}",
     "onWebviewPanel:archify.preview",
     "workspaceContains:**/*.archify-registry",
-    "workspaceContains:**/*.archify-decision"
+    "workspaceContains:**/*.archify-decision",
+    "onUri"
   ],
   "contributes": {
     "commands": [
@@ -118,6 +119,51 @@
         "command": "archify.openModelGraph",
         "title": "Archify | Open Model Graph",
         "icon": "$(type-hierarchy)"
+      },
+      {
+        "command": "archify.sync.signIn",
+        "title": "Archify | Sign in to Sync Server…",
+        "icon": "$(account)"
+      },
+      {
+        "command": "archify.sync.signOut",
+        "title": "Archify | Sign out of Sync Server",
+        "icon": "$(sign-out)"
+      },
+      {
+        "command": "archify.sync.share",
+        "title": "Archify | Share Model…",
+        "icon": "$(live-share)"
+      },
+      {
+        "command": "archify.sync.invite",
+        "title": "Archify | Copy Invite Link",
+        "icon": "$(person-add)"
+      },
+      {
+        "command": "archify.sync.join",
+        "title": "Archify | Join Shared Model…",
+        "icon": "$(link)"
+      },
+      {
+        "command": "archify.sync.publish",
+        "title": "Archify | Publish Version…",
+        "icon": "$(tag)"
+      },
+      {
+        "command": "archify.sync.versions",
+        "title": "Archify | Versions…",
+        "icon": "$(history)"
+      },
+      {
+        "command": "archify.sync.stop",
+        "title": "Archify | Stop Syncing Model…",
+        "icon": "$(debug-disconnect)"
+      },
+      {
+        "command": "archify.sync.menu",
+        "title": "Archify | Sync…",
+        "icon": "$(broadcast)"
       }
     ],
     "menus": {
@@ -161,6 +207,26 @@
         {
           "command": "archify.openModelGraph",
           "when": "archify.isDiagramSource || archifyPreviewFocus || activeCustomEditorId == 'archify.diagram' || activeCustomEditorId == 'archify.registry' || activeCustomEditorId == 'archify.decision'"
+        },
+        {
+          "command": "archify.sync.invite",
+          "when": "archify.sync.active"
+        },
+        {
+          "command": "archify.sync.publish",
+          "when": "archify.sync.active"
+        },
+        {
+          "command": "archify.sync.versions",
+          "when": "archify.sync.active"
+        },
+        {
+          "command": "archify.sync.stop",
+          "when": "archify.sync.active"
+        },
+        {
+          "command": "archify.sync.menu",
+          "when": "archify.sync.active"
         }
       ],
       "editor/title": [
@@ -250,6 +316,11 @@
           "command": "archify.openModelGraph",
           "when": "resourceFilename =~ /\\.archify(-registry|-decision)?$/",
           "group": "zzz_archify@9"
+        },
+        {
+          "command": "archify.sync.share",
+          "when": "resourceFilename == main.archify",
+          "group": "archify@9"
         }
       ],
       "editor/title/context": [
@@ -464,6 +535,12 @@
         "fileMatch": "*.archify-registry",
         "url": "./schemas/archify-registry.schema.json"
       }
+    ],
+    "authentication": [
+      {
+        "id": "archify-sync",
+        "label": "Archify Sync"
+      }
     ]
   },
   "scripts": {
@@ -482,6 +559,7 @@
     "@types/node": "^22.0.0",
     "@types/three": "^0.186.0",
     "@types/vscode": "~1.100.0",
+    "@types/ws": "^8.18.2",
     "@vscode/test-electron": "^3.1.0",
     "@vscode/vsce": "^3.0.0",
     "esbuild": "^0.25.0",
@@ -506,7 +584,11 @@
     "codemirror-json-schema": "^0.8.1",
     "cytoscape": "^3.34.4",
     "cytoscape-fcose": "^2.2.0",
+    "lib0": "^0.2.119",
     "three": "^0.186.1",
-    "yaml": "^2.9.1"
+    "ws": "^8.22.1",
+    "y-protocols": "^1.0.7",
+    "yaml": "^2.9.1",
+    "yjs": "^13.6.33"
   }
 }