[GH-2867] Translate Tutorial / Programming Guide to Chinese (Phase 4)

[jiayuasu]

Part of #2867.

Scope

Translate all pages under `docs/tutorial/` into Chinese (~27 files).

Files

• Top-level: `sql.md`, `raster.md`, `sql-pure-sql.md`, `geopandas-api.md`, `rdd.md`, `geopandas-shapely.md`, `viz.md`, `zeppelin.md`, `viz-gallery.md`, `benchmark.md`, `Advanced-Tutorial-Tune-your-Application.md`, `storing-blobs-in-parquet.md`, `demo.md`, `jupyter-notebook.md`
• `docs/tutorial/files/` — csv, geopackage, geoparquet, geojson, shapefiles, geotiffmetadata, stac
• `docs/tutorial/concepts/` — spatial-joins, clustering-algorithms, distance-spark
• `docs/tutorial/flink/` — sql, pyflink-sql
• `docs/tutorial/snowflake/` — sql

Deliverable

A `*.zh.md` sibling for each English tutorial page. Code blocks stay verbatim; only prose, headings, and inline comments are translated.