Add optional map mode argument to render

[kkirov]

Label Clipping Prevention in mbgl-render

This PR adds the ability to use MapMode::Tile with mbgl-render to prevent label clipping at tile boundaries, which is particularly important for map tile generation.

Changes

• Adds support for MapMode::Tile while maintaining MapMode::Static as the default
• No breaking changes to existing behavior
• Enables proper label placement across tile boundaries when explicitly using MapMode::Tile

Technical Background

Label clipping occurs because MapMode::Static treats each tile in isolation, causing labels near tile edges to be truncated. MapMode::Tile mode considers neighboring tiles during label placement, ensuring continuous and properly placed labels across tile boundaries.

Related Issues

• Labels getting clipped with some sources but not others #644 - Label clipping discussion
• Labels getting clipped in tile mode (node version) #284 (comment) - Technical explanation of tile modes

[louwers]

LGTM but you need to run clang-format.

pre-commit install
pre-commit run --all-files

[github-actions]

Bloaty Results (iOS) 🐋

Compared to main

    FILE SIZE        VM SIZE    
 --------------  -------------- 
  [ = ]       0  [ = ]       0    TOTAL

Full report: https://maplibre-native.s3.eu-central-1.amazonaws.com/bloaty-results-ios/pr-3109-compared-to-main.txt