Auto-activate accounts instead of requiring a manual Activate click

**What:** After signing in, users are shown an "Activate your account" dialog that says the account is not yet activated and asks "Would you like to activate it?", with an **Activate** button they must click manually before they can use the app. The only options are Activate or Sign out. **Suggested improvement:** Activate the account automatically so this manual step is removed. If a verification step is genuinely required, handle it through the normal email-verification flow rather than a click-through dialog whose only real choice is "Activate." **Why:** The manual click adds an onboarding step with no user benefit — if "Activate" is the only way forward, it may as well happen automatically. Fewer steps means a smoother first-run experience and fewer drop-offs. **Where:** Post-login / onboarding — the "Activate your account" dialog shown on the Home screen.