GISPulse v2.2.3

[2.2.3]

Added

• PMTiles tiling (gispulse.tiling.write_pmtiles). GeoParquet → static
  PMTiles writer backed by DuckDB ST_AsMVT, with the new tiling extra
  (pmtiles, pyarrow). Ports the last milou-branch capability into mainline.
• VectorFileFetcher / AccessProtocol.LOCAL_FILE. Core protocol roster now
  reads local vector files (KML/KMZ, GeoPackage, GeoJSON, Shapefile,
  FlatGeobuf, ...) through gispulse.persistence.io.read_vector() and returns a
  SourceResult carrying the materialized GeoDataFrame and CRS. This keeps
  MILOU-style local KMZ ingestion on the official imagodata/gispulse package.

Fixed

• Line-volume memory corruption in tiling. Tile encoding ran one ST_AsMVT
  query per coverage tile on a single DuckDB connection; past a few hundred line
  features the spatial extension corrupted memory → non-deterministic segfault or
  ST_AsMVTGeom: tile width and height must be positive. Rewritten as a single
  grouped query (features × tiles spatial join → GROUP BY tile). Robust and much
  faster.
• Unsupported MVT property types. A DATE/TIMESTAMP (or other non-numeric)
  column made tiling fail (ST_AsMVT accepts only VARCHAR/FLOAT/DOUBLE/INTEGER/
  BIGINT/BOOLEAN). Properties are now coerced (wide ints → BIGINT, decimals →
  DOUBLE, everything else → VARCHAR).