Install amika and amikalog CLIs in sandbox images - #280

## What

Add a `RUN amikalog start` step to the base preset `Dockerfile` (after
`USER amika`) so every sandbox ships with the Claude Code and Codex
hooks pre-registered. Users no longer need to run `amikalog start`
themselves for the sandbox to begin capturing agent activity.

## Why

The `amikalog` binary was recently baked into the base image (#280), but
the hooks it installs still had to be turned on manually per sandbox.
Registering them at image-build time makes capture work out of the box.

## How it works

`amikalog start` (v0.2.0, the pinned `AMIKALOG_VERSION`) runs
`eventlog.Init`, which in one pass:

- writes `~/.claude/settings.json` — the `amikalog hook --source claude`
command for all 18 Claude hook events (match-all);
- writes `~/.codex/hooks.json` — the `amikalog hook --source codex`
command for all 10 Codex events (matcher `.*`), honoring `$CODEX_HOME`;
- strips any obsolete managed `notify` from `~/.codex/config.toml`.

The step runs as the `amika` user, so both files are written into
`/home/amika` owned by amika, with the hook command pinned to the
absolute installed path `/usr/local/bin/amikalog`. It only writes config
files (no network) and is idempotent. Every preset (`coder`, `claude`,
`dind`, `coder-dind`, `daytona-*`) derives from `base`, so this covers
container and Daytona VM sandboxes in one place.

## Testing

Fetched the exact pinned release (`amikalog@v0.2.0`, via `install.sh`)
and ran `amikalog start` against a throwaway `HOME`:

- exit 0; wrote both `~/.claude/settings.json` (18 events) and
`~/.codex/hooks.json` (10 events, matcher `.*`);
- hook command used the absolute binary path (→
`/usr/local/bin/amikalog` in the image);
- second run reported "already present" and exited 0 (idempotent).

## Note

amika-mono's Freestyle/Vercel snapshot builders reproduce the preset
image independently and don't install the `amikalog` binary yet, so
they're unaffected by this change. Extending the hooks to those
providers is a separate follow-up.

Release `amika@v0.12.0` by bumping `DEFAULT_VERSION` in `install.sh`
from `0.11.2` to `0.12.0`.

## Changes since amika@v0.11.2

**Sandbox & CLI:**
- Add top-level `amika scp` command for SSH file copy (#278)
- Add `amika snapshot create/list/delete` commands (#282)
- Add `--snapshot` flag to `amika sandbox create` (#285)
- Support remote mode in `service list` (#283)
- Add (then hide) the `--github-auth-mode` flag on `sandbox create`
(#270, #273)
- Show command aliases in `amika` CLI help output (#263)

**Sandbox images & VM snapshots:**
- Install amika and amikalog CLIs in sandbox images (#280)
- Auto-install amikalog hooks in sandbox images (#281)
- Bump L/XL sandbox disk to 24 GB / 32 GB (#279)
- Match VM snapshot sizes to container sizes; add XL (#272)
- Version linux-vm snapshots by git short hash (#276)
- Don't publish the xs VM snapshot for coder-dind (#275)
- Publish Daytona linux-vm snapshots and restore setuid on VM boot
(#271)
- Drop user@host line from sandbox shell prompt (#269)
- Clear stale dockerd pidfile before starting daemon (#268)

**TypeScript SDK:**
- Release TypeScript SDK v0.10.0 with sandbox snapshot support (#287,
#284)
- Add `*.functional.test.ts` convention and prod guard (#286)
- Document AgentCredentialRef resolution rules (#267)

**Docs & internal:**
- Keep README local-first and add Amika Cloud section (#260)
- Fix stale API route paths in CLI client comments (#264)

Bumps [pnpm/action-setup](https://github.com/pnpm/action-setup) from 5.0.0 to 6.1.0.

## Release notes

Sourced from pnpm/action-setup's releases.

### v6.1.0

### What's Changed
- feat: support pnpm v12 by `@zkochan` in pnpm/action-setup#288

Full Changelog: pnpm/action-setup@v6.0.10...v6.1.0

### v6.0.10

### What's Changed
- docs(README): point users to the successor pnpm/setup action by `@BlackHole1` in pnpm/action-setup#282
- refactor: introduce restore keys for cache by `@SukkaW` in pnpm/action-setup#280
- ci: use pnpm 11 for `pr-check` by `@jamietanna` in pnpm/action-setup#284
- fix: update pnpm to v11.19.0 by `@jamietanna` in pnpm/action-setup#283
- docs: update README to include devEngines.packageManager by `@nemchik` in pnpm/action-setup#273

### New Contributors
- `@jamietanna` made their first contribution in pnpm/action-setup#284
- `@nemchik` made their first contribution in pnpm/action-setup#273

Full Changelog: pnpm/action-setup@v6...v6.0.10

### v6.0.9

### What's Changed
- fix: update pnpm to v11.7.0 by `@zkochan` in pnpm/action-setup#267

Full Changelog: pnpm/action-setup@v6...v6.0.9

### v6.0.8

### What's Changed
- docs(README): fix `cache_dependency_path` type by `@haines` in pnpm/action-setup#257
- fix: drop patchPnpmEnv so standalone+self-update works on Windows by `@zkochan` in pnpm/action-setup#258
- fix: update pnpm to 11.1.1 by `@mungodewar` in pnpm/action-setup#248

### New Contributors
- `@mungodewar` made their first contribution in pnpm/action-setup#248

Full Changelog: pnpm/action-setup@v6.0.7...v6.0.8

### v6.0.7

### What's Changed
- fix: honor devEngines.packageManager.onFail=error (#252) by `@zkochan` in pnpm/action-setup#254
- fix: restore inputs from state in post by `@haines` in pnpm/action-setup#255
- fix: self-update bootstrap to packageManager-pinned version (#233) by `@zkochan` in pnpm/action-setup#256

### New Contributors
- `@haines` made their first contribution in pnpm/action-setup#255

Full Changelog: pnpm/action-setup@v6.0.6...v6.0.7

... (truncated)

## Commits
- `ea17c68` feat: support pnpm v12 (#288)
- `0977fd9` docs: Update README to include devEngines.packageManager (#273)
- `48261ac` fix: update pnpm to v11.19.0 (#283)
- `75677f7` ci: use pnpm 11 for `pr-check` (#284)
- `769ae71` refactor: introduce restore keys for cache (#280)
- `6fed91f` docs(README): point users to the successor pnpm/setup action (#282)
- `0ebf471` fix: update pnpm to v11.7.0 (#267)
- `0e279bb` fix: update pnpm to 11.1.1 (#248)
- `3e83581` fix: drop patchPnpmEnv so standalone+self-update works on Windows (#258)
- `551b42e` docs(README): fix `cache_dependency_path` type (#257)
- Additional commits viewable in compare view