Refactor DashboardFilterBar to use props exclusively, eliminate dual state source

- DashboardFilterBar now requires all filter props (timeRange, onTimeRangeChange, originFilter, onOriginFilterChange) instead of falling back to context
- Removed useDashboardFilters() hook dependency from DashboardFilterBar, BanTrendChart, and JailDistributionChart
- Updated DashboardPage to explicitly pass all filter values and callbacks from context to components
- Made props required on BanTrendChart and JailDistributionChart
- Updated all tests to reflect new prop requirements
- This eliminates the silent dual-source behavior that could lead to subtle bugs when components are used with different data sources

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Docs/Tasks.md

@@ -1,30 +1,3 @@
-### TASK-STATE-02 — `withRefresh` in `useJailList` Creates New Function References Every Render
-
-**Where found**
-`frontend/src/hooks/useJailList.ts`. The `withRefresh` helper is defined inside the hook body without `useCallback`. It wraps an operation and calls `refresh()` after it completes. Because it is recreated every render, `startJail`, `stopJail`, `setIdle`, and `reloadJail` — which are all produced by `withRefresh(...)` — are also new references every render. Any child component receiving these as props will re-render even when nothing has changed.
-
-**Goal**
-Wrap `withRefresh` in `useCallback` with `[refresh]` as dependency, or inline `useCallback` directly for each operation:
-```ts
-const startJail = useCallback(async (name: string) => {
-  await apiStartJail(name);
-  refresh();
-}, [refresh]);
-```
-This ensures the function references are stable between renders.
-
-**Possible traps and issues**
-- If `withRefresh` is used to produce many operations, it may be cleaner to keep `withRefresh` as a `useCallback` that captures `refresh`, rather than wrapping each call individually.
-- After stabilising these references, `JailOverviewSection` or any child wrapped in `React.memo` will correctly skip re-renders when only unrelated state changes.
-
-**Docs changes needed**
-None required.
-
-**Why this is needed**
-Unstable function references passed as props defeat `React.memo` optimisations and cause unnecessary child re-renders. On the Jails page, which renders a list of potentially many jails, this compounds with every parent state change.
-
----
-
 ### TASK-STATE-03 — `DashboardFilterBar` Has Dual State Source
 
 **Where found**