Mirror the reviewed node SDK PR (slackapi/node-slack-sdk#2638):

- Correct the max row count: the model previously stated up to 100 data
  rows (101 including header); the reference documents 201 rows (200 data
  rows plus header). The 100 cap was page_size, not the row maximum. Drop
  the stale count from the javadoc rather than restate it.
- Align each field's javadoc with the data-table-block reference Fields
  table verbatim (rows, caption, page_size, row_header_column_index).
- Trim RawTextDataTableCell / RawNumberDataTableCell to the terse,
  docs-minimal descriptions (drop the invented sorting/formatting tails);
  document value and text per the docs.

Ref: https://docs.slack.dev/reference/block-kit/blocks/data-table-block

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>

…ta_table

The data_table cells (raw_text / raw_number / rich_text) are the same
cell model the table block uses. Rather than ship a parallel
DataTableCell family, adopt the shared TableCell interface and its
RawTextTableCell / RawNumberTableCell implementations in
com.slack.api.model.block.composition, deserialized by a single
GsonTableCellFactory:

- Remove DataTableCell, RawTextDataTableCell, RawNumberDataTableCell,
  and GsonDataTableCellFactory.
- Add TableCell, RawTextTableCell, RawNumberTableCell (in ...block.composition)
  and GsonTableCellFactory (in ...util.json).
- DataTableBlock.rows is now List<List<TableCell>>; RichTextBlock
  implements TableCell; the client and model-test GsonFactory register
  TableCell -> GsonTableCellFactory.

This is the same cell model the sibling table-block PR (#1611)
introduces, placed in the same package with identical definitions, so
whichever of the two lands second drops the now-duplicate files in a
trivial merge. Mirrors how node (@slack/types composition objects) and
python (slack_sdk basic_components) also share one cell model across
both blocks.

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>

…bject

Rename the concrete TableCell implementations from RawTextTableCell /
RawNumberTableCell to RawTextObject / RawNumberObject, matching the
composition-object naming used by the other SDKs (python RawTextObject /
RawNumberObject) and this repo's own ...Object grammar (PlainTextObject,
MarkdownTextObject, OptionObject). The shared TableCell interface is the
supertype the list is parameterized on (Java has no union types, so
List<List<TableCell>> is how the raw_text | raw_number | rich_text union
is expressed); only the implementation names change.

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>

…import

- GsonLayoutBlockFactory: move the DataTableBlock case into alphabetical
  order (between ContextBlock and DividerBlock) instead of after
  SectionBlock.
- RichTextBlock: import com.slack.api.model.block.composition.TableCell
  and use the simple name in the implements clause rather than the fully
  qualified type inline.

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>

The raw_number schema marks text as required (required: [type, value,
text], text minLength 1) — the javadoc wrongly called it optional. Match
the schema: text carries the display representation of the value and must
be at least one character long.

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>

Keep the text-is-display + min-length note, drop the "(for example a
formatted string)" aside.

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>

Restructure RawNumberObject and RawTextObject to per-field javadoc,
mirroring the node @slack/types descriptions and matching this repo's
own per-field convention (OptionObject, ConfirmationDialogObject):

- class: "Defines an object containing a numeric value." / "...some text."
- value: "The numeric value."
- text (number): "The text used to display the value. The minimum length is 1 character."
- text (text): "The text for the block. The minimum length is 1 character."

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>