archive: include contracts/, schemas/; report skipped top-level dirs

Two of yesterday's archives silently dropped infospace content: the default
include set was missing contracts/, so wealth-vsm-generation-pilot (16 files)
and wealth-vsm-legacy-slice (12 files) were preserved as 14 and 10 files
respectively. Fix the include set and make silent drops visible.

- DEFAULT_INCLUDE now: infospace.yaml, artifacts, contracts, schemas,
  workflows, output, reports, exports
- ArchiveRecord gains skipped_top_level: top-level entries present in the
  live root that are not in the include set, not excluded, and not auto-
  hidden (hidden dotfiles, empty dirs, .store/index.yaml). Surfaces in
  index.yaml only when non-empty.
- Re-archived the two affected pilots with correct counts. Prior records
  remain in each index.yaml as history.

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

infospaces/wealth-vsm-generation-pilot/output/archives/index.yaml

@@ -15,3 +15,22 @@ archives:
   producer: infospace-bench
   subject: wealth-vsm-generation-pilot
   store_root: infospaces/wealth-vsm-generation-pilot/output/archives/.store
+- package_id: a4c7809f-51f3-4fd7-8f15-1be95e8b6171
+  manifest_digest: blake3:f5932ba65730a41c0a844f86749854200bf6443f2246afd88a4a0dfbefabde6a
+  retention_class: release-evidence
+  created_at: '2026-05-17T10:20:51'
+  included_paths:
+  - infospace.yaml
+  - artifacts
+  - contracts
+  - schemas
+  - workflows
+  - output
+  - reports
+  - exports
+  file_count: 16
+  note: 'Re-archive: capture contracts/ that initial archive missed (DEFAULT_INCLUDE
+    fix)'
+  producer: infospace-bench
+  subject: wealth-vsm-generation-pilot
+  store_root: infospaces/wealth-vsm-generation-pilot/output/archives/.store

infospaces/wealth-vsm-legacy-slice/output/archives/index.yaml

@@ -15,3 +15,22 @@ archives:
   producer: infospace-bench
   subject: wealth-vsm-legacy-slice
   store_root: infospaces/wealth-vsm-legacy-slice/output/archives/.store
+- package_id: ba107ffc-03b8-4c39-a72f-9aec66cf1b45
+  manifest_digest: blake3:30b06d0b6fe7d9fed1a094805c07ce7896fff950aece8ec33e4df99da162accb
+  retention_class: release-evidence
+  created_at: '2026-05-17T10:20:54'
+  included_paths:
+  - infospace.yaml
+  - artifacts
+  - contracts
+  - schemas
+  - workflows
+  - output
+  - reports
+  - exports
+  file_count: 12
+  note: 'Re-archive: capture contracts/ that initial archive missed (DEFAULT_INCLUDE
+    fix)'
+  producer: infospace-bench
+  subject: wealth-vsm-legacy-slice
+  store_root: infospaces/wealth-vsm-legacy-slice/output/archives/.store