Sprint 2 item 2: a digital-employee role config (connect_role.go) was a
defined-but-unused schema. Wire it into the connector so a single
--role-config <file> supplies the bot's owner, persona and knowledge
sources instead of scattering them across flags.
- add --role-config / DWS_ROLE_CONFIG; load + validate in launchConnector
with a client_id-must-match-this-bot guard (one role == one bot)
- applyRoleConfig merges role -> options with explicit-flag-wins semantics
(a flag/env always overrides the role; knowledge sources are additive)
- owner feeds the approval gate; persona is prepended to every forwarded
prompt; role knowledge sources load and merge into the same retriever
- AllowedScopes / ConfirmPolicy are parsed and logged but not yet enforced
(scope gating + auto/remember strategies are a later slice; no dead opts
fields carried for them)
- tests: applyRoleConfig flag-wins / fill-empty / nil-role
Scope enforcement and confirm-policy behavior intentionally deferred.