[littlegrasscao]

Summary

• Query Table ends with an endStreamAction when the body sets includeRefreshToken or the delta-sharing-capabilities header sets includeendstreamaction=true; only the latter is echoed in the response header
• endStreamAction carries the refresh token, if asked for, and minUrlExpirationTimestamp, the earliest presigned URL expiry
• a refresh token pins the table and version of a latest-snapshot query; passing it back re-signs that version without making the response historical
• tokens expire with the URLs; an expired, undecodable, or other-table token, or either option with version/timestamp, is INVALID_PARAMETER_VALUE
• endStreamAction has no nextPageToken, since Query Table responses are not paged

Testing

• mvn clean install: 189 tests passed
• ProtocolTableRefreshTest: token issue and round trip, includeendstreamaction echo, and the invalid combinations, on a local Delta log
• ProtocolTableRefreshIntegrationTest: the round trip with signed S3, Azure, and GCS files; each case is skipped without credentials
• RefreshTokensTest, TableActionsTest, DeltaSharingCapabilitiesTest

Stacked on #109.