feat(p7-07): defer all 249 filestore tests — FileStore implementation is a stub

All methods on JetStreamFileStore throw NotImplementedException (session 18
placeholder). Marked all 249 unit_tests (IDs 351–599) for server/filestore_test.go
as deferred in porting.db. No test file created; tests will be written once the
FileStore implementation is ported. All 701 existing unit tests continue to pass.

reports/current.md

@@ -1,6 +1,6 @@
 # NATS .NET Porting Status Report
 
-Generated: 2026-02-27 00:35:59 UTC
+Generated: 2026-02-27 00:40:06 UTC
 
 ## Modules (12 total)
 
@@ -22,9 +22,9 @@ Generated: 2026-02-27 00:35:59 UTC
 | Status | Count |
 |--------|-------|
 | complete | 252 |
-| deferred | 235 |
+| deferred | 484 |
 | n_a | 187 |
-| not_started | 2469 |
+| not_started | 2220 |
 | verified | 114 |
 
 ## Library Mappings (36 total)

reports/report_0950580.md

@@ -0,0 +1,39 @@
+# NATS .NET Porting Status Report
+
+Generated: 2026-02-27 00:40:06 UTC
+
+## Modules (12 total)
+
+| Status | Count |
+|--------|-------|
+| not_started | 1 |
+| verified | 11 |
+
+## Features (3673 total)
+
+| Status | Count |
+|--------|-------|
+| complete | 3368 |
+| n_a | 26 |
+| verified | 279 |
+
+## Unit Tests (3257 total)
+
+| Status | Count |
+|--------|-------|
+| complete | 252 |
+| deferred | 484 |
+| n_a | 187 |
+| not_started | 2220 |
+| verified | 114 |
+
+## Library Mappings (36 total)
+
+| Status | Count |
+|--------|-------|
+| mapped | 36 |
+
+
+## Overall Progress
+
+**4237/6942 items complete (61.0%)**