TASK-079: mark In Progress in M7 milestone index

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: etr

specs/tasks/M7-v2-cleanup/TASK-079.md

@@ -32,4 +32,4 @@ into real two-round flows once TASK-062 lands the RFC-7616-compliant challenge.
 **Related Requirements:** PRD-RSP-REQ-005 (`unauthorized` factory completeness)
 **Related Decisions:** None new (RFC 7616)
 
-**Status:** Backlog
+**Status:** In Progress

specs/tasks/M7-v2-cleanup/_index.md

@@ -43,7 +43,7 @@ TASK-093).
 | TASK-076 | Replace tautological-pass blocks in TLS test lanes | HIGH | M | Done |
 | TASK-077 | Restore Windows / Darwin coverage in skipped test suites | HIGH | L | Done |
 | TASK-078 | Resolve commented-out CONNECT-method test bodies | HIGH | S | Done |
-| TASK-079 | Drive nonce/opaque state machine in v2 digest-auth integ tests | MED | M | Backlog |
+| TASK-079 | Drive nonce/opaque state machine in v2 digest-auth integ tests | MED | M | In Progress |
 | TASK-080 | Tighten threadsafety_stress latency gate back from 100× to 10× | MED | M | Backlog |
 | TASK-081 | Fill empty-on-correct-build unit suites and re-enable pthread leak detector | MED | M | Backlog |
 | TASK-082 | Tighten static-size bounds in `http_resource_test` and `webserver_pimpl_test` | MED | S | Backlog |