Refactor dashboard and upload flows

Remove dead admin UI code, redesign dashboard followers/following and upload experiences, and add schema audit tooling with repair migrations for forum and upload drift.

resources/js/components/upload/__tests__/UploadWizard.test.jsx

@@ -48,7 +48,7 @@ function installAxiosStubs({ statusValue = 'ready', initError = null, holdChunk
         return Promise.resolve({ data: { processing_state: statusValue, status: statusValue } })
       }
 
-      if (url === '/api/uploads/session-1/publish') {
+      if (/^\/api\/uploads\/[^/]+\/publish$/.test(url)) {
         return Promise.resolve({ data: { success: true, status: 'published' } })
       }
 
@@ -114,6 +114,7 @@ async function completeStep1ToReady() {
 
 describe('UploadWizard step flow', () => {
   let originalImage
+  let originalScrollTo
   let originalScrollIntoView
   let consoleErrorSpy
 
@@ -122,7 +123,9 @@ describe('UploadWizard step flow', () => {
     window.URL.revokeObjectURL = vi.fn()
 
     originalImage = global.Image
+    originalScrollTo = window.scrollTo
     originalScrollIntoView = Element.prototype.scrollIntoView
+    window.scrollTo = vi.fn()
     Element.prototype.scrollIntoView = vi.fn()
     consoleErrorSpy = vi.spyOn(console, 'error').mockImplementation((...args) => {
       const text = args.map((arg) => String(arg)).join(' ')
@@ -143,6 +146,7 @@ describe('UploadWizard step flow', () => {
 
   afterEach(() => {
     global.Image = originalImage
+    window.scrollTo = originalScrollTo
     Element.prototype.scrollIntoView = originalScrollIntoView
     consoleErrorSpy?.mockRestore()
     cleanup()