feat(sessions): send immediate heartbeat on route changes with current path

Presence: frontend heartbeat + green dot indicator in Manage users list

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Quote bar: revert to Hitokoto API (d,i,k); restore fields

Quote bar: fix type cast to OneItem for cached value

Quote bar: switch to ONE API via backend (/api/one/quote); show forward + words_info

Hitokoto: remove topic h from categories (keep d,i,k)

UI: add sticky Hitokoto quote bar (categories d,h,i,k), next/hide, cached; include in Layout

Header: add Toolkit link with wrench icon to navigation (desktop+mobile)

Add support for image-only tasks in weekly practice (week 3+)

Make page transitions hide content during loading, matching week transition behavior

Add spinner loading to TutorialTasks week switches and increase Week 2 transition duration to 2000ms

Fix WeeklyPractice spinner to match page transitions and fix Week 2 transition duration

Add dynamic transition duration and spinner loading for WeeklyPractice week switches

Restore original transition durations - 1200ms for content-heavy pages

Match page transition duration to week transition timing (800ms for content-heavy pages)

Try URL parameter approach for page navigation to force Week 1 default

Fix page navigation: remove setTimeout delay for immediate week reset events

New approach: direct API calls in week change, custom events for page navigation, force state updates

Fix week switching issues: clear state before updating, longer delays for Week 2, proper page navigation defaults

Fix page navigation issues: clear data on week changes, default to Week 1 on page switches, dynamic transition duration for heavy pages

Fix animation timing - wait for content rendering with extra delay to ensure no lag

Increase animation durations for better sync with content loading - page transitions: 500ms, week transitions: 600ms

Simplify page transitions to loading indicator only, add skeleton loading for week transitions in TutorialTasks

Fix page transition animation - properly reset transition state after navigation

Add smooth page transition animations with loading indicator

Fix TypeScript errors for image support in Week 2 tutorial tasks