fix(integrations): resolve bare-hub project names (#3741)

Resolve hidden bare repository directories to their hub project name across
coding-agents, OpenCode, Claude Code, and OMO.
Use stable standalone bare names; Claude Code and OMO may migrate existing
users from old parent-directory bank IDs to the corrected names.
Old memories remain in the previous bank because bank IDs are not migrated.
Handle optional Git mock arguments for strict TypeScript checks.
Add mock and real-Git regression coverage, including bare-hub opt-in and
directory-bank mapping inheritance.