fix/duration-filters

[alanpeixinho]

What it is

Fixes duration filter handling in the dashboard and API:

• Duration filters showing 0 filter card #428: 0 is not treated as an active duration filter (no chip, not persisted, not sent). Duration inputs show 0 correctly (?? instead of ||). Clearing a duration field removes it from filter state.
• wrong param parse on build duration #2126: Non-zero duration filters work from URL state and query params: minified URL keys parse as numbers, Zod coerces duration values safely, API mapping only sends active durations, and the backend no
  longer truncates multi-digit values (e.g. 3600 → 3) when filters come from the query string.

Closes #428
Closes #2126

How to test

1. Open a tree view with duration filters (build / boot / test).
2. Set min or max to 0 → no duration chip; other filters unchanged.
3. Set a non-zero duration (e.g. build min 120) → chip appears; results respect the filter.
4. Reload or share the URL with duration in df|… → chip and filter still apply.
5. (API) Request with filter_duration_[lte]=3600 → results match 3600, not 3.

[felipebergamin]

I think these tests does not cover the POST path used by Tree Details and Hardware Details, right?

worth adding a process_body=True

[felipebergamin]

this guards '' but other values can also become NaN.

Even if the input is of type number, I think it's worth using Number.isFinite to validate the parsed value.

[felipebergamin]

I'd not reference github issues in test names. Give it a description that we can understand without leaving the editor and put a link to the issue as a comment.

// ensures https://github.com/kernelci/dashboard/issues/428
describe('...', () => {});

[felipebergamin]

I'm pondering if this is too permissive. Since value is unknown we can get anything here.

Maybe we should do something like:

export const getActiveDurationFilter = (
  value: unknown,
): number | undefined => {
  if (typeof value !== 'string' && typeof value !== 'number') {
    return undefined;
  }

  if (typeof value === 'string' && value.trim() === '') {
    return undefined;
  }

  const n = Number(value);

  return Number.isFinite(n) && n !== 0 ? n : undefined;
};

OR restricting the type of value param