Adopt new Fizzy SDK/API commands and card filtering

[robzolkos]

Summary

• switch card list --column to server-side filtering while keeping the existing command shape
• add SDK-backed commands for activities, board accesses, webhook deliveries, user exports, and user email change flow
• update unit/e2e/contract coverage plus skill/docs/surface snapshots

Included

• fizzy card list --column <id|maybe|not-now|done> now filters server-side
• new fizzy activity list
• new fizzy board accesses --board <id>
• new fizzy webhook deliveries --board <id> <webhook_id>
• new fizzy user export-create <user_id>
• new fizzy user export-show <user_id> <export_id>
• new fizzy user email-change-request <user_id> --email <email>
• new fizzy user email-change-confirm <user_id> <token>

Testing

• go test ./...
• make surface-check
• make check

Notes

• UPDATE.md intentionally not included
• local go.mod / go.sum changes were intentionally left out pending the SDK PR state
• email change flow is unit-tested only; no e2e coverage was added because it likely triggers real email/token flow

---

Summary by cubic

Adopted new Fizzy SDK endpoints for activity, board access, webhook delivery, and user data/email commands. Moved card column filtering to the server for faster, accurate results without changing CLI syntax.

• New Features

  • fizzy activity list [--board ID] [--creator ID] [--page|--all]
  • fizzy board accesses --board ID [--page]
  • fizzy webhook deliveries --board ID WEBHOOK_ID [--page|--all]
  • fizzy user export-create USER_ID and fizzy user export-show USER_ID EXPORT_ID
  • fizzy user email-change-request USER_ID --email EMAIL and fizzy user email-change-confirm USER_ID TOKEN
  • Docs updated and unit/e2e/contract coverage added

• Refactors

  • fizzy card list --column now filters server-side; supports real column IDs and pseudo-columns (maybe → indexed_by=maybe, not-now/not_now → not_now, done → closed, plus triage → maybe) with the same flags; no --all/--page workaround needed
  • Help text and surface snapshots aligned with new --indexed-by options (adds maybe); email-change flow covered by unit tests only

^{Written for commit fcce893. Summary will update on new commits.}

[github-actions]

⚠️ Potential breaking changes detected:

• The pseudo column ID 'not-now' replaced 'not_now'. This rename could affect scripts or code referring to the old name.
• The pseudo column ID 'triage' replaced 'maybe'. This rename could affect scripts or code referring to the old name.
• Flag '--indexed-by' had its filter values updated: 'not_now' is now 'not-now', and 'maybe' is now handled differently. Scripts referencing the old values might break.
• Flag '--status' as an alias for '--indexed-by' is marked deprecated. Scripts using '--status' might be impacted if it is removed in the future.

Review carefully before merging. Consider a major version bump.