fix: remove unused timeout param from handleRunError (unparam lint)

fix: resolve lint unparam errors and align timeout E2E test with graceful timeout behavior

fix: update footer text to reflect builder attribution

Add favicon image to the documentation

Create CNAME

refactor: remove task/session terminology and unused Redis listener; update NewSession output mode to api_only; add documentation index.html

fix: address code review findings

fix: apply parameter defaults in preset run and remove unused UI vars

refactor: remove unused Redis input listener

refactor: rename task terminology to session

fix: ensure session fails on tool/MCP setup failure

refactor: remove workflow runtime engine and clean up wiring

refactor: migrate UI to session-first model

feat: implement preset run to create session directly

refactor: remove non-sentry builtin workflows