[solo applicant] share progress via a read-only view link that hides write affordances

CareerVector user-story tests under ui/e2e/stories/ that previously each lived in their own singleton suite. Covers solo-applicant edge cases (industry-not-in-enum, missing home address, manual job reorder within group, peer CV/CL trees across languages, terminal-status auto grouping, read-only view link, quarry node activation, CV summary edit) and the agent-operator MCP "add job by shape" probe.

Proof set for Switch to read-only view link (sharing progress without edit risk)