feat(claude-local): add Sonnet 5.5 and refresh the qualified Claude runtime (#14993)

## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work.
> - The Claude local adapter lists models for users with a Claude
subscription.
> - The list needs Claude Sonnet 5.5 and its supported effort levels.
> - Sonnet 5.5 needs Claude Code 2.1.284 or later on both execution
paths.
> - The qualified ACP runtime previously used Claude Code 2.1.280.
> - This change adds Sonnet 5.5 and pins Agent SDK 0.3.286, which
includes Claude Code 2.1.286.
> - Users can select the model and run it with a qualified runtime.

## Linked Issues or Issue Description

Refs #3936. This replaces #14816 because the maintainer integration
cannot write to the contributor fork.

Thank you to @SkilLab-Tech for the model support, runtime refresh,
tests, and platform digest verification. This branch preserves both
original commits: `8d2f3261af61a2ac1120e51e8a8618732ace543b` and
`e68d1d002a3ed745f016fb11c50ac5a3c5a9ff8d`.

Related work:

- #14917 added Claude model ordering. This branch includes that merged
change and resolves its conflicts with #14816.
- #14942 updates the other models and harnesses. It remains separate.
Its matching Sonnet effort and CLI-gate changes are identical. Both PRs
merge with master. The second PR will need a rebase after the first
merges because adjacent runtime-pin and test edits conflict.
- #14954 is another Sonnet 5.5 change. It overlaps with the model
additions but does not include the qualified runtime refresh.
- #14039 makes the per-task effort picker model-aware. #3937 is also
related to effort selection.

The original author checked the [Claude Code
changelog](https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md)
and [effort
documentation](https://platform.claude.com/docs/en/build-with-claude/effort)
on 2026-10-01.

## What Changed

- Add the direct `claude-sonnet-5-5` model and Low, Medium, High,
X-High, and Max effort levels.
- Require Claude Code 2.1.284 or later for that model on the CLI path.
- Put Sonnet 5.5 after Opus 5.5 in the current-model group. Keep Sonnet
5 in the older-model group.
- Retain the Sonnet 5.5 assertions and the model-order assertions in the
server tests.
- Pin Agent SDK 0.3.286 and Claude Code 2.1.286 across overrides,
integrity digests, qualified profiles, Rust provider pins, and the
Daytona version check.
- Update the related adapter and runtime documentation.

## Verification

Local verification uses the resolved source tree and pnpm 9.15.4. Model
tests passed on Node 25.9.0. Runtime integrity tests use CI's Node
24.21.0.

- Five focused Claude test files pass: 62 tests. They cover model
defaults, model ordering, CLI gates, and remote execution probes.
- Server model-list and UI setup tests pass: 30 tests.
- The Claude adapter typecheck passes.
- Runner integrity and qualification tests pass on Node 24.21.0: 78
tests. Four descriptor-loader tests fail on Node 25.9.0; all four pass
on the CI version.
- The runner package contract passes: 10 tests.
- Full local typecheck stopped with exit 137 in the database package
under the container's 4 GB memory limit. The production build reached
the runner Rust build, then stopped because `cargo` is absent.
- The full stable local Vitest run was stopped after all current-head CI
test shards passed. It did not complete locally. The 180 focused tests
listed above passed.
- `git diff --check` passes. The branch changes 20 files against master.
It has no lockfile or workflow changes.
- The original author verified all three platform digests against
registry integrity and ran the Linux executable. Its version was
`2.1.286 (Claude Code)`. See #14816 for that evidence.
- Greptile reviewed head `6db3d3f1` and gave 5/5 with zero comments.
Both Superagent scans and Commitperclip pass. All current-head CI jobs
pass, including build, typecheck, Rust, test shards, browser tests, and
the canary dry run.

## Risks

- The controller and provider pack must use matching runtime pins.
Deploy them together.
- CI owns `pnpm-lock.yaml`. The master lockfile refresh must resolve the
SDK override. Refresh the Daytona lock digest with that lockfile.
- Images built with Claude Code older than 2.1.284 need a rebuild before
the CLI path can use Sonnet 5.5.
- The runtime remains at SDK 0.3.286. This PR does not take the later
0.3.287 patch.
- A live Sonnet 5.5 session and a Daytona image build are not part of
the local verification.

## Model Used

- Original work: Anthropic Claude Code, `claude-sonnet-5-5`. Review:
`claude-opus-5-5`. The author reported `xhigh` effort, tool use, and
code execution. The original context window was not reported.
- Merge repair and PR preparation: OpenAI Codex, based on GPT-6, with
tool use and code execution. The runtime does not expose the exact model
identifier or context window in this session.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have searched GitHub for duplicate or related PRs and linked
them above
- [x] I have either (a) linked existing issues with `Fixes: #` / `Closes
#` / `Refs #` OR (b) described the issue in-PR following the relevant
issue template
- [x] I have not referenced internal/instance-local Paperclip issues or
links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip`
URLs)
- [x] My branch name describes the change (e.g. `docs/...`, `fix/...`)
and contains no internal Paperclip ticket id or instance-derived details
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] All Paperclip CI gates are green
- [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups
- [x] I will address all Greptile and reviewer comments before
requesting merge

## Squash Attribution

Keep these trailers in the squash commit to preserve the original author
and AI attribution:

```text
Co-Authored-By: Claude Code (Ivan) <SkilLab-Tech@users.noreply.github.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Paperclip <noreply@paperclip.ing>
```

---------

Co-authored-by: Claude Code (Ivan) <ivan@skillab.com.br>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Paperclip <noreply@paperclip.ing>

docker/daytona-runner/Dockerfile

@@ -140,7 +140,7 @@ RUN /bin/sh -lc 'set -eu; \
       command -v "$command_name" >/dev/null || { echo "FATAL: $command_name not on PATH for daytona user" >&2; exit 1; }; \
     done; \
     test "$(codex --version)" = "codex-cli 0.156.0"; \
-    test "$(claude --version)" = "2.1.280 (Claude Code)"; \
+    test "$(claude --version)" = "2.1.286 (Claude Code)"; \
     test "$(opencode --version)" = "1.18.32"; \
     test "$(acpx --version)" = "0.13.1"; \
     test "$(claude-agent-acp --version)" = "0.73.0"; \

docker/daytona-runner/README.md

@@ -14,12 +14,12 @@ image that this Dockerfile can extend directly.
 
 ## Harness versions
 
-The September 22, 2026 refresh pins Codex 0.156.0, Claude Agent SDK
-0.3.280 (Claude Code 2.1.280), and OpenCode 1.18.32 in the shared provider
+The October 1, 2026 refresh pins Codex 0.156.0, Claude Agent SDK
+0.3.286 (Claude Code 2.1.286), and OpenCode 1.18.32 in the shared provider
 pack. Claude Code 2.1.280 is the minimum for
-[Opus 5.5](https://code.claude.com/docs/en/model-config); it also supports
-Fable 5.1. Codex uses the current
-[GPT-6 Sol and Luna model IDs](https://learn.chatgpt.com/docs/models).
+[Opus 5.5](https://code.claude.com/docs/en/model-config) and 2.1.284 is the
+minimum for Sonnet 5.5; the pinned runtime also supports Fable 5.1. Codex uses
+the current [GPT-6 Sol and Luna model IDs](https://learn.chatgpt.com/docs/models).
 Grok CLI 1.0.41 supports the current
 [Grok 4.7](https://docs.x.ai/developers/grok-4-7) model family.