refactor: update dependencies and remove unused code

- Added new dependencies: `adler2`, `crc32fast`, `flate2`, `miniz_oxide`, and `libredox`.
- Updated existing dependencies: `tokio-rustls` to version 0.26.4 and `filetime` to version 0.2.27.
- Removed the `backup.rs` file as it is no longer needed.
- Introduced tests for configuration and credential management.
- Enhanced the `identity` module to generate W3C compliant DID documents.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

neode-ui/src/stores/__tests__/loginTransition.test.ts

@@ -0,0 +1,52 @@
+import { describe, it, expect, beforeEach } from 'vitest'
+import { setActivePinia, createPinia } from 'pinia'
+import { useLoginTransitionStore } from '../loginTransition'
+
+describe('useLoginTransitionStore', () => {
+  beforeEach(() => {
+    setActivePinia(createPinia())
+  })
+
+  it('starts with all flags false', () => {
+    const store = useLoginTransitionStore()
+    expect(store.justLoggedIn).toBe(false)
+    expect(store.pendingWelcomeTyping).toBe(false)
+    expect(store.startWelcomeTyping).toBe(false)
+  })
+
+  it('setJustLoggedIn updates justLoggedIn', () => {
+    const store = useLoginTransitionStore()
+    store.setJustLoggedIn(true)
+    expect(store.justLoggedIn).toBe(true)
+    store.setJustLoggedIn(false)
+    expect(store.justLoggedIn).toBe(false)
+  })
+
+  it('setPendingWelcomeTyping updates pendingWelcomeTyping', () => {
+    const store = useLoginTransitionStore()
+    store.setPendingWelcomeTyping(true)
+    expect(store.pendingWelcomeTyping).toBe(true)
+    store.setPendingWelcomeTyping(false)
+    expect(store.pendingWelcomeTyping).toBe(false)
+  })
+
+  it('setStartWelcomeTyping updates startWelcomeTyping', () => {
+    const store = useLoginTransitionStore()
+    store.setStartWelcomeTyping(true)
+    expect(store.startWelcomeTyping).toBe(true)
+    store.setStartWelcomeTyping(false)
+    expect(store.startWelcomeTyping).toBe(false)
+  })
+
+  it('flags are independent of each other', () => {
+    const store = useLoginTransitionStore()
+    store.setJustLoggedIn(true)
+    store.setPendingWelcomeTyping(true)
+    expect(store.startWelcomeTyping).toBe(false)
+
+    store.setStartWelcomeTyping(true)
+    store.setJustLoggedIn(false)
+    expect(store.pendingWelcomeTyping).toBe(true)
+    expect(store.startWelcomeTyping).toBe(true)
+  })
+})