feat: Add Get Sheet Shares

[akimpel-smar]

Adds getSheetShares() method to smartsheet-sheet-api.ts.

Adds corresponding tool in smartsheet-sheet-tools.ts to fetch all sheet shares.

Also adds build-windows to package.json.

[smar-sean-sekora]

my assumption is that most users will not

• switch a sheet to Grid
• click file -> properties
• copy "Sheet ID"
  to ask the AI
  There is an undocumented public API I added a couple years ago to the API get sheet endpoint by the "DirectId"
  Could you create another tool for this...maybe use similar logic as the tool search_in_sheet_by_url
  https://github.com/smartsheet-platform/smar-mcp/blob/main/src/tools/smartsheet-search-tools.ts#L86
  Could also be an opportunity to dry up the implementation

[smar-sean-sekora]

may be more related to adding a tool for get_sheet_shares_by_url
https://github.com/smartsheet-platform/smar-mcp/pull/35/files#diff-64f0e3433efa66c925b105d3a627ac1f453a855b6013e1c13988d82b3ee459d2R471

[akimpel-smar]

Pushed - I left this as a separate tool for convenience. It's possible we may be able to dry it up further but I don't think keeping these separate (especially given this is undocumented) is a bad thing.

[salman-bilalshah]

There is an undocumented public API I added a couple years ago to the API get sheet endpoint by the "DirectId"

Is there a way we can document it? Jim could help us get it in?