[TheGreatAxios]

Summary

• Removes Linear ticket tags (CL-1234), INTR-123, and PR/issue references (#709, workbench#709) from comments, test titles, and doc strings under packages/**, per the owner ruling that git history carries ticket provenance and code should be self-documenting.
• After removing each tag, re-read the comment: pure restatements, history narration ("used to", "retired", "cut over"), and references to deleted modules/features were trimmed or deleted; a few oversized file-header comments were cut to the 1-2 lines that still state a non-obvious constraint.
• Test names keep their descriptive part (test("CL-6833: ...") → test("...")).
• Zero behavior change: only comments, test titles, README/doc prose, and a couple of ticket-only fragments inside log/error strings were touched.

Test plan

• git grep -n "CL-[0-9]\{4\}\|INTR-[0-9]\|workbench#[0-9]" -- packages is empty
• bun run typecheck
• bun run lint (only pre-existing, unrelated warnings in apps/sidecar)
• bun run fmt
• bun test smoke on the five largest touched packages (chat-ui, connections, agent-directory, settings-ui, evals+workflows) — all pass; pre-existing DOM-env failures in chat-ui/composer.test.tsx and settings-ui/granola-webhook-card.test.tsx reproduce identically on main and are unrelated to this change

[linear-code]

CL-8317