Add sync-all script

[expede]

With a Subduction-capable pushwork, this PR lets you do: pnpm run sync-all. It doesn't (yet) pushwork init --sub (there's a larger discussion to be had with the pushwork maintainers about API), so you will have needed to init packages with --sub first.

Example output:

# snip
│━━━ todo ━━━                                                                                                                                                                                                                          │
│⠋ Syncingusing deprecated parameters for `initSync()`; pass a single object instead                                                                                                                                                   │
│⠹ Waiting for initial sync from server                                                                                                                                                                                                │
│  Using Subduction sync backend (from config)(node:24000) TimeoutNegativeWarning: -1 is a negative number.                                                                                                                            │
│Timeout duration was set to 1.                                                                                                                                                                                                        │
│✔ Synced (1.60s)                                                                                                                                                                                                                      │
│  Using Subduction sync backend (from config)                                                                                                                                                                                         │
│Root: automerge:35bmoPrhJiy7XWCof3so4LFGqaBG                                                                                                                                                                                          │
│                                                                                                                                                                                                                                      │
│━━━ unconference ━━━                                                                                                                                                                                                                  │
│⠋ Syncingusing deprecated parameters for `initSync()`; pass a single object instead                                                                                                                                                   │
│⠹ Waiting for initial sync from server                                                                                                                                                                                                │
│  Using Subduction sync backend (from config)(node:24001) TimeoutNegativeWarning: -6 is a negative number.                                                                                                                            │
│Timeout duration was set to 1.                                                                                                                                                                                                        │
│✔ Synced (1.48s)                                                                                                                                                                                                                      │
│  Using Subduction sync backend (from config)                                                                                                                                                                                         │
│Root: automerge:3h3aaHQZ57zQbvSpE7w9e4bx2RS9                                                                                                                                                                                          │
│                                                                                                                                                                                                                                      │
│━━━ word-counter ━━━                                                                                                                                                                                                                  │
│⠋ Syncingusing deprecated parameters for `initSync()`; pass a single object instead                                                                                                                                                   │
│✔ Synced (1.01s)                                                                                                                                                                                                                      │
│  Using Subduction sync backend (from config)                                                                                                                                                                                         │
│Root: automerge:3GHj7JaGHbm4a2HXxVNbWKAkvvxE                                                                                                                                                                                          │
│                                                                                                                                                                                                                                      │
│━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━                                                                                                                                                                                                    │
│  32 succeeded, 0 failed

[Copilot]

Pull request overview

Adds a repo-level sync-all command to run pushwork sync across all initialized tool/package directories in this monorepo.

Changes:

• Introduces scripts/sync-all.sh to iterate top-level directories with .pushwork and run pushwork sync.
• Adds a pnpm run sync-all script entry in the root package.json.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 5 comments.

File	Description
scripts/sync-all.sh	New bash script to sync each initialized package and summarize successes/failures.
package.json	Exposes the new script via pnpm run sync-all.

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