feat: add account deletion, announcements and subscription renewal

Support personal records and persistent smoking visibility. Add upload quota preflight, file cleanup, privacy entry, image caching and revision-based page refresh across the backend, admin and mini program.

weapp/tests/navigation.test.cjs

@@ -25,7 +25,7 @@ test('native custom tabs retain the three main pages; pages never mount a duplic
 test('component selects the main page, hides on child routes and avoids reloading its current tab',()=>{
   let definition,route='pages/profile/profile',pageData={};const navigations=[];
   vm.runInNewContext(fs.readFileSync(path.join(root,'custom-tab-bar/index.js'),'utf8'),{
-    Component:c=>definition=c,require:()=>({tabForPage,paths}),getCurrentPages:()=>[{route,data:pageData}],wx:{switchTab:o=>{navigations.push(o.url);o.complete();},reLaunch(){assert.fail('normal tab switching must retain pages');}}
+    Component:c=>definition=c,require:name=>name.includes('subscribe')?{tryLoginRenewal(){}}:({tabForPage,paths}),getCurrentPages:()=>[{route,data:pageData}],wx:{switchTab:o=>{navigations.push(o.url);o.complete();},reLaunch(){assert.fail('normal tab switching must retain pages');}}
   });
   const component={...definition.methods,data:{...definition.data},setData(v){Object.assign(this.data,v);}};
   definition.lifetimes.attached.call(component);assert.equal(component.data.active,'profile');