feat(provider): mark_superseded verb — Worldtree #364 contradiction retirement + bifrost 1.1.4

Implement `mark_superseded(ids, *, superseded_by=None, reason=None)` — the SOLE
supersession verb Worldtree #364's promotion-hygiene reconciliation calls to retire
contradicted facts (wire shape confirmed by worldtree-dev, bifrost_memory_store.py:293).
Live re-verify (2026-07-16) proved our provider 500-crashed on this call (unimplemented)
→ #364's retirement couldn't land + a retry-storm bloated the store; the readout only
passed via transient recency-eviction.

- `mark_superseded` mirrors the reference `_mark_lifecycle`: sets top-level
  `superseded=True` (+ `superseded_by`/`superseded_reason` when non-None), increments
  revision, NON-destructive (get still returns; recoverable). Unknown ids skipped.
- `_is_live` (INV-011) now short-circuits on `superseded is True`, so a retired chunk is
  excluded from `scan` (person-prime) — durable retirement, not just recency-eviction.
  search is unfiltered (matches reference; WT re-checks liveness client-side).
- Contract: un-defer mark_superseded (+ FN spec, INV-011); TDD 5/5 (retires-from-scan
  tracer, non-destructive-get, unknown-id no-op, non-None-fields-only, parity #195).
- bifrost 1.1.1→1.1.4: hasattr-gate backstop for the maintenance verbs (unimplemented
  verb → unsupported_capability 400, never AttributeError/500/retry-storm — the gap we
  surfaced) + the 1.1.3 scan/cursor conformance harness. Full suite 644 green.

uv.lock

@@ -190,14 +190,14 @@ wheels = [
 
 [[package]]
 name = "bifrost"
-version = "1.1.1"
+version = "1.1.4"
 source = { registry = "https://gitea.phasefinal.com/api/packages/vh/pypi/simple/" }
 dependencies = [
     { name = "jsonschema" },
 ]
-sdist = { url = "https://gitea.phasefinal.com/api/packages/vh/pypi/files/bifrost/1.1.1/bifrost-1.1.1.tar.gz", hash = "sha256:0934c5fdf14823766346e591f5a16ab57a137cf06df794152318b5ccef0fb8e8" }
+sdist = { url = "https://gitea.phasefinal.com/api/packages/vh/pypi/files/bifrost/1.1.4/bifrost-1.1.4.tar.gz", hash = "sha256:498d156035a93bf37a6fc1e9c09b468aac61e869fd2a5353e2695dc823f57e9a" }
 wheels = [
-    { url = "https://gitea.phasefinal.com/api/packages/vh/pypi/files/bifrost/1.1.1/bifrost-1.1.1-py3-none-any.whl", hash = "sha256:dab551f8ad26464168f17108cb19564da56ee8e4789264a401e7a14463ab1576" },
+    { url = "https://gitea.phasefinal.com/api/packages/vh/pypi/files/bifrost/1.1.4/bifrost-1.1.4-py3-none-any.whl", hash = "sha256:d67278528f12729eef0c19d875d36a2f1da6fa97737396ba130d525fee8d0b14" },
 ]
 
 [[package]]
@@ -1052,7 +1052,7 @@ wheels = [
 
 [[package]]
 name = "ratatoskr"
-version = "0.20.14"
+version = "0.20.15"
 source = { editable = "." }
 dependencies = [
     { name = "httpx" },
@@ -1086,7 +1086,7 @@ web = [
 
 [package.metadata]
 requires-dist = [
-    { name = "bifrost", marker = "extra == 'provider'", specifier = "==1.1.1", index = "https://gitea.phasefinal.com/api/packages/vh/pypi/simple/" },
+    { name = "bifrost", marker = "extra == 'provider'", specifier = "==1.1.4", index = "https://gitea.phasefinal.com/api/packages/vh/pypi/simple/" },
     { name = "httpx", specifier = ">=0.27" },
     { name = "httpx-sse", specifier = ">=0.4" },
     { name = "jsonschema", marker = "extra == 'provider'", specifier = ">=4" },