Add workspace-side file collection to `coder support bundle` via
repeatable --workspace-file flags. The agent resolves the requested
paths or globs inside the remote workspace and streams back a tar with
a manifest and the collected files; nothing is read from the machine
running the command.
- Add POST /api/v0/bundle-files to the agent's agentfiles package.
- Expand env vars in the agent's environment; paths must then be
absolute or start with ~/ (the agent user's home directory).
- Support ** globs and tail oversized files.
- Record requested patterns, per-path errors, truncation, and the
applied limits in a manifest.
- Unpack the archive into the bundle under agent/workspace_files/,
recording dropped entries in collection_errors.txt.
- Write a manifest-only archive marking collection as unsupported for
agents that predate the endpoint.
- Bound collection: 64 KB request body, 10000 files, 10 MiB per file,
100 MiB total including archive overhead, 110 MiB client-side read
cap, 5 minute timeout.
Closes#26020