fix: round zoom level, osm.org will floor it

[nilsnolde]

🛠️ Fixes Issue

fixes #322 (not really, but since osm.org won't change their url parsing, this is as close as we get)

👨‍💻 Changes proposed

osm.org floors any incoming zoom float, this PR rounds it to the nearest integer first.

[gisops-bot]

Preview is ready! 🚀 You can view it here: https://valhalla-app-tests.gis-ops.com/324

[nilsnolde]

for some reason I can't run the unit test, e.g.

 ❯ src/components/tiles/valhalla-layers-toggle.spec.tsx (17 tests | 5 failed) 467ms
       ✓ should render without crashing 31ms
       ✓ should render toggle label 8ms
       ✓ should render description text 4ms
       ✓ should render Tile API link 112ms
       ✓ should render switch in unchecked state by default 16ms
       ✓ should not render when map is not ready 1ms
       × should add source when toggled on 42ms
       × should add all layers when toggled on 40ms
       × should remove all layers when toggled off 44ms
       × should remove source when toggled off 39ms
       ✓ should not add source if already exists 23ms
       × should not add layer if already exists 23ms
       ✓ should update checked state when toggled 22ms
       ✓ should register styledata event listener 4ms
       ✓ should unregister styledata event listener on unmount 4ms
       ✓ should sync enabled state with source existence on style change 18ms
       ✓ should set enabled to false when source is removed on style change 34ms

and stuff like

 FAIL  src/utils/base-url.spec.ts > base-url > testConnection > should normalize URL before testing
TypeError: localStorage.clear is not a function
 ❯ src/utils/base-url.spec.ts:16:18
     14| describe('base-url', () => {
     15|   beforeEach(() => {
     16|     localStorage.clear();
       |                  ^
     17|   });
     18| 

with totals of

 Test Files  7 failed | 42 passed (49)
      Tests  134 failed | 638 passed (772)
     Errors  7 errors

do you have a gut feeling why @mustaphaturhan ?

[mustaphaturhan]

@nilsnolde that is interesting. is it failing with a reason? can you try removing node_modules and running npm install again?

[nilsnolde]

@mustaphaturhan the output is super huge, the above is a small example. there's many reasons why individual tests fail. I reinstalled already, didn't change. turns out it was the node version, system has node v25.2.1, when I install 22.x it runs smoothly.