feat(web-api): add agents.sessions.setStatus and agents.sessions.rename

[zimeg]

Adds the agents.sessions.* Web API methods (setStatus, rename) to the sync, async, and legacy web clients — the successors to assistant.threads.setStatus/setTitle for the agent sessions model. Async + legacy generated via scripts/codegen.py.

Documentation

• agents.sessions.setStatus — set an agent session's lifecycle status, creating the session if needed.
• agents.sessions.rename — rename an agent session.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.17%. Comparing base (bfb098a) to head (6d89d0c).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@ Coverage Diff @@## main #1942 +/- ##
==========================================
+ Coverage 84.15% 84.17% +0.02% 
==========================================
Files 118 118 Lines 13446 13470 +24 ==========================================
+ Hits 11315 11339 +24 
Misses 2131 2131 

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[zimeg]

Self-review notes (author) — for a reviewer's context

Sharing what I checked so a reviewer has the full picture. This is a self-review, not an approval.

Correctness

• Method impls (sync / async / legacy) follow the established per-method pattern exactly: **kwargs merge → _remove_none_values → api_call(..., json=kwargs). json= (POST body) is correct for these, matching assistant.threads.*.
• Return types are correct per client (SlackResponse / AsyncSlackResponse / Union[Future, SlackResponse]).
• Arguments match the reference docs: agents.sessions.rename = channel_id + title (required), thread_ts (optional); agents.sessions.setStatus = channel_id + status (required), plus thread_ts / title / initiator_user_id / icon_emoji / icon_url / username.
• Ordering is alphabetical by family in both the client method defs and the coverage all_api_methods list (admin.workflows → agents.sessions → api).

Testing

• test_web_client_coverage exercises both methods (endpoint count 306 → 308); green across all Python versions in CI.
• The underlying endpoints were separately live-verified against real Slack via the Java SDK remote test (agents.sessions.setStatus + rename, ok: true, response shape confirmed). The three SDKs share identical argument sets, so these bindings call endpoints that are proven to work.

Note

• No per-method request-assertion unit test beyond the coverage test — consistent with this repo's convention (the coverage test is the standard bar here).

Docstrings link only to public docs.slack.dev. Companion PRs: Java slackapi/java-slack-sdk#1633, Node slackapi/node-slack-sdk#2703.