storkit: accept 413_refactor_split_slack_rs_into_focused_modules

.storkit/work/5_done/413_refactor_split_slack_rs_into_focused_modules.md

@@ -1,29 +0,0 @@
----
-name: "Split slack.rs into focused modules"
----
-
-# Refactor 413: Split slack.rs into focused modules
-
-## Current State
-
-- TBD
-
-## Desired State
-
-Refactor the monolithic server/src/chat/transport/slack.rs (1902 lines) into a slack/ directory with focused modules, mirroring the whatsapp/ module structure from story 409.
-
-## Acceptance Criteria
-
-- [ ] slack.rs is replaced by a slack/ directory with mod.rs re-exporting all public types
-- [ ] meta.rs contains SlackTransport struct, ChatTransport trait impl, and Slack API request/response types
-- [ ] commands.rs contains incoming message dispatch, permission logic, and slash command handling
-- [ ] format.rs contains markdown_to_slack() conversion
-- [ ] history.rs contains load_slack_history(), save_slack_history(), and SlackHistoryDump
-- [ ] verify.rs contains verify_slack_signature(), sha256(), and constant_time_eq()
-- [ ] mod.rs contains Slack event types, webhook handlers, and SlackWebhookContext
-- [ ] All existing tests are preserved and pass in their respective modules
-- [ ] No public API changes — all existing imports from other crates continue to work
-
-## Out of Scope
-
-- TBD