76e4b577a0
Rename the eleven MCP tool names (bridge_ack/ask/list/poll/profiles/reply/ send/spawn/status/stop/whoami) to their fleet_* names across the Markdown documentation. fleet_* is written as the normal name; one deprecation note in README.md says bridge_* still works for one release. docs/MCP-Contract.md is renamed only inside section 6 (lines 210-293): sections 1-5 and 7-11 are stale pre-build design text (CB-609) and are deliberately left with old names so dead text does not look maintained. Also renames e2e/bridge_ask_transcript.md to e2e/fleet_ask_transcript.md to match its content. CLAUDE.md, wiki/, plugin/skills/setup/SKILL.md and .claude/skills/port-to-opencode/SKILL.md are owned by other units and are untouched.