Cross-platform NegotiateAuthentication; StorageType field; docs polish

HistorianSspiClient rewritten on top of System.Net.Security.NegotiateAuthentication
in place of P/Invoke into secur32.dll's InitializeSecurityContextW. The class
keeps the same Next() / Dispose() / two-constructor surface so callers don't
change. RequiredProtectionLevel=EncryptAndSign + AllowedImpersonationLevel=
Identification produces a request-flag set equivalent to the captured native
0x2081C / 0x81C bitmasks (still preserved as constants for the existing unit
tests). Removes the only Windows P/Invoke in the production SDK; the
[SupportedOSPlatform("windows")] gating elsewhere stays in place pending a
separate sweep.

HistorianStorageType (Cyclic = 1, Delta = 2):
Captured 2026-05-04 via --write-storage-type on the harness. Delta differs
from Cyclic in three places — header byte 10 (0x02 -> 0x06), flag-block
byte 1 (0x01 -> 0x02), and 4 zero bytes inserted after StorageRate before
the FILETIME. Server persists Tag.StorageType=1/2 accordingly. Plumbed
through HistorianTagDefinition.StorageType + serializer + orchestrator + 2
new tests (golden bytes + live SQL persistence verification).

Docs polish:
CLAUDE.md no longer claims "no P/Invoke" (HistorianSspiClient is the one
allowed P/Invoke surface); updated test count to 169+; AGENTS.md Required
SDK Surface and Repository Layout brought up to date with the live state
including the write surface; handoff.md "not a git working tree" obsolete
note removed.

171/171 tests pass with the NegotiateAuthentication replacement (was 169;
+2 new tests for StorageType).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

This commit is contained in:

Joseph Doherty

2026-05-04 22:19:37 -04:00

parent 5ce62a5900

commit 7e4d713eb3

11 changed files with 265 additions and 361 deletions

									
										docs/reverse-engineering/handoff.md
									
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				@@ -78,8 +78,9 @@ Current known-good result:

				- Build succeeds.

				- Unit tests pass: 55/55.

				The repository folder is not currently a Git working tree in this checkout, so

				use file timestamps or your own external backup if you need change tracking.

				The workspace is a Git working tree (origin: gitea.dohertylan.com). Use

				normal git workflow for change tracking; the prior "no working tree, use

				timestamps" note is obsolete.

				## Environment Variables