0.8.2: pan outside canvas + finish RUWIO rename of exports

- Canvas stage: plain left-click in the empty content area (outside
  the canvas rectangle) now starts a pan. Ctrl+left-click still pans
  anywhere, middle-click unchanged. Only pure left-click qualifies
  (any modifier leaves the old routing intact).
- Export rebrand Animatr → RUWIO for everything user-visible:
  - Default filenames: projekt.animatr.json → projekt.ruwio.json;
    animatr-runtime.js → ruwio-runtime.js; App's export fallback
    base animatr → ruwio.
  - Generated comment headers in runtime/scene/bundled scripts.
  - Console warn prefix in the runtime and the scene store.
  - Example HTML title, heading, and embed-usage snippet.
  - parseProject error message.
  - ExportDialog copy.
- RUNTIME_VERSION 14 → 15 so cached runtimes reload.
- On-disk magic stays `animatr-project` and window.AnimatrPlayer /
  __animatrPending / localStorage & IndexedDB keys are untouched so
  old project files and previously-exported HTML keep working.

Regression tests: legacy magic still parses; parseProject error
mentions RUWIO and not Animatr; runtime/scene/bundled scripts and
example HTML all carry the new brand; console prefix is [ruwio].

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/lib/exportPlayer.ts

@@ -1,6 +1,6 @@
 import type { Scene } from '@/types/scene'
 
-const RUNTIME_VERSION = '14'
+const RUNTIME_VERSION = '15'
 
 const ENGINE_SOURCE = `(function(){
   if (window.AnimatrPlayer && window.AnimatrPlayer.__v === '${RUNTIME_VERSION}') return;
@@ -194,7 +194,7 @@ const ENGINE_SOURCE = `(function(){
       forcePlay: false,
       buttonStates: {},
       buttonDisabled: {},
-      warn: function(m){ if(window.console)window.console.warn('[animatr]',m); }
+      warn: function(m){ if(window.console)window.console.warn('[ruwio]',m); }
     };
     (scene.markers||[]).forEach(function(mk){ runtime.markers[mk.name]=mk.time; });
 
@@ -897,7 +897,7 @@ export interface ExportOptions {
 
 export function generateRuntimeScript(): string {
   return (
-    '/* Animatr runtime v' + RUNTIME_VERSION + ' — generated ' + new Date().toISOString() + ' */\n' +
+    '/* RUWIO runtime v' + RUNTIME_VERSION + ' — generated ' + new Date().toISOString() + ' */\n' +
     ENGINE_SOURCE
   )
 }
@@ -906,8 +906,8 @@ export function generateSceneScript(scene: Scene, options: ExportOptions = {}):
   const sceneJson = jsonForExport(scene)
   const optsJson = JSON.stringify({ loop: options.loop !== false })
   return (
-    '/* Animatr scene — generated ' + new Date().toISOString() + '\n' +
-    ' * Requires animatr-runtime.js (v' + RUNTIME_VERSION + ') to be loaded once per page.\n' +
+    '/* RUWIO scene — generated ' + new Date().toISOString() + '\n' +
+    ' * Requires ruwio-runtime.js (v' + RUNTIME_VERSION + ') to be loaded once per page.\n' +
     ' */\n' +
     SCENE_BOOT_SOURCE.replace('__SCENE__', sceneJson).replace('__OPTIONS__', optsJson)
   )
@@ -915,7 +915,7 @@ export function generateSceneScript(scene: Scene, options: ExportOptions = {}):
 
 export function generateBundledScript(scene: Scene, options: ExportOptions = {}): string {
   return (
-    '/* Animatr bundled export — generated ' + new Date().toISOString() + ' */\n' +
+    '/* RUWIO bundled export — generated ' + new Date().toISOString() + ' */\n' +
     ENGINE_SOURCE +
     '\n' +
     generateSceneScriptBody(scene, options)
@@ -928,7 +928,7 @@ function generateSceneScriptBody(scene: Scene, options: ExportOptions): string {
   return SCENE_BOOT_SOURCE.replace('__SCENE__', sceneJson).replace('__OPTIONS__', optsJson)
 }
 
-export function downloadRuntime(filename = 'animatr-runtime.js') {
+export function downloadRuntime(filename = 'ruwio-runtime.js') {
   triggerDownload(generateRuntimeScript(), filename, 'application/javascript')
 }
 
@@ -949,7 +949,7 @@ export function generateExampleHtml(scene: Scene, options: ExportOptions = {}):
 <head>
 <meta charset="utf-8" />
 <meta name="viewport" content="width=device-width,initial-scale=1" />
-<title>Animatr — Example</title>
+<title>RUWIO — Example</title>
 <style>
   :root { color-scheme: light dark; }
   body {
@@ -1003,7 +1003,7 @@ export function generateExampleHtml(scene: Scene, options: ExportOptions = {}):
 </style>
 </head>
 <body>
-  <h1>Animatr Export</h1>
+  <h1>RUWIO Export</h1>
   <p>Load the runtime once, then embed as many scenes on the page as you like.</p>
 
   <!-- Runtime: once per page -->
@@ -1021,7 +1021,7 @@ ${sceneBoot}
   <div class="usage">
     <h2>Embed on your own page</h2>
     <pre>&lt;!-- once per page --&gt;
-&lt;script src="animatr-runtime.js"&gt;&lt;/script&gt;
+&lt;script src="ruwio-runtime.js"&gt;&lt;/script&gt;
 
 &lt;!-- per animation: one container + scene script --&gt;
 &lt;div style="width: 800px; height: 450px;"&gt;