release(v1.11.0): pi 1.1.0, pi-obsmem 022da5e, pi-atelier v0.15.0, all floating refs at newest

- ARG PI_VERSION 1.0.0 -> 1.1.0. Audited against the npm tarballs: the only
  breaking change in 1.0.1..1.1.0 is 1.0.3's azure-openai-responses -> azure
  rename, which nothing here uses. pi-agent-core's finishTurn handling is
  byte-identical between 1.0.0 and 1.1.0.
- ARG PI_OBSMEM_REF 731c3d4 -> 022da5e (= master): #81 compaction keeps
  unobserved context, #93 prebuilt dist/index.ts. src/agents/ unchanged.
- ARG PI_ATELIER_REF/VERSION v0.13.0 -> v0.15.0. Sidebar Auto/Manual modes,
  Manual by default. README's sidebar section updated.
- SKILLSET_SNAPSHOT_REF e9e45f7 -> 96b840e via vendor-mempalace-skill.sh.
  The vendored bytes are unchanged.
- Dockerfile.base BASE_REBUILD_DATE marker refreshed, at no cost, because the
  base rebuilds anyway (rootfs + entrypoint-user.sh changed in 11e512e).
- CHANGELOG: Unreleased -> v1.11.0 with the audit. The CI bypass of the obsmem
  pin is recorded under Still open.

Exercised before tagging, with pi 1.1.0 from a temp prefix in a real pty
against -ne controls:
- obsmem turn cap: 11 turns uncapped, exactly 3 capped.
- atelier v0.15.0 paints in both renderers (controls 0/3, render-proofed).
- obsmem 022da5e registers /om:status and /om:view.
- All 11 pi-extensions a88fa99 extensions load.

Local gates: check-doc-drift (rc 0, check 9 names every moved component),
lint-shell, check-workflow-shell, test-link-pi-models (13/13),
check-dockerfile-directives, check-skill-floor, check-base-hash.

README.md

@@ -464,7 +464,10 @@ pin the order yourself.
 
 The sidebar auto-hides below 92 terminal columns and keeps the main pane at
 least 64 columns wide, so a narrow terminal degrades to the plain TUI rather
-than a squeezed one.
+than a squeezed one. That is **Manual** mode, the default since atelier v0.15.0.
+`/atelier sidebar auto` switches to **Auto** mode, which collapses the sidebar
+when space is tight (below 124 columns at the default width) and reopens it at
+132. Manual width adjustment is disabled in Auto mode.
 
 ## docker-compose.yml — basic shape
 
@@ -1195,7 +1198,7 @@ persisted volumes survived, and pi runtime wiring is intact:
 ```bash
 ./scripts/recreate-sanity-check.sh                              # auto-detects variant
 ./scripts/recreate-sanity-check.sh --expected-image-version 1.8.9  # assert the pi-devbox release tag
-./scripts/recreate-sanity-check.sh --expected-version 1.0.0          # assert the pi coding agent version
+./scripts/recreate-sanity-check.sh --expected-version 1.1.0          # assert the pi coding agent version
 ```
 
 Those are **two different versions**, and the flags are not interchangeable:
@@ -1234,9 +1237,9 @@ resolved to `latest` at build time:
 
 | Component | Pin | Where |
 |---|---|---|
-| pi | `1.0.0` | `ARG PI_VERSION` — `Dockerfile.variant` |
-| pi-obsmem | `731c3d49288580f4d79cabdbfbc0d16b34db0f41` | `ARG PI_OBSMEM_REF` — `Dockerfile.variant` |
-| pi-atelier | `v0.13.0` | `ARG PI_ATELIER_REF` — `Dockerfile.variant` |
+| pi | `1.1.0` | `ARG PI_VERSION` — `Dockerfile.variant` |
+| pi-obsmem | `022da5e5554d04dfdc876ed7dac4a42c6b83dfd4` | `ARG PI_OBSMEM_REF` — `Dockerfile.variant` |
+| pi-atelier | `v0.15.0` | `ARG PI_ATELIER_REF` — `Dockerfile.variant` |
 | mempalace | `3.10.0` | `ARG MEMPALACE_VERSION` — `Dockerfile.base` |
 
 The objective is **not** to freeze versions. Bumping is routine — usually one