feat(omp): make OMP a first-class provider (#5550)

Makes OMP a first-class provider: import keeps the session model, replay matches live rendering, /compact waits for OMP, Auto thinking, working multi-select and Other answers, mid-turn steering, fallback model and Fast mode, archived agents open without starting omp, profile-aware import, crash recovery and approval-mode changes, readable tool-call rows, one bubble per /skill, blocked and abandoned todos, OMP notifications, hidden todo reminders on reload, and session MCP servers for schedules and Hub runs.

Fixes #2727, fixes #2857, fixes #4000, fixes #4790, fixes #5354, fixes #5099

Co-authored-by: Abhishek Gupta <183943363+abhi-wan-kenobi@users.noreply.github.com>
Co-authored-by: Jegor Kitskerkin <jegor.kitskerkin@gmail.com>
Co-authored-by: Kh05ifr4nD <meandSSH0219@gmail.com>
Co-authored-by: Nguyen Quang Minh <135627235+n24q02m@users.noreply.github.com>
Co-authored-by: Omer Cohen <639682+omercnet@users.noreply.github.com>
Co-authored-by: Thomas Van <minhthong@gmail.com>
Co-authored-by: allo <alloevil@hotmail.com>
Co-authored-by: gray-graff <gray.graff@gmail.com>
Co-authored-by: kasrakhosravi <kasra@goldsky.com>
Co-authored-by: viet-initx <viet@initx.io>

docs/agent-lifecycle.md

@@ -34,8 +34,8 @@ workflows all live in the CLI process, and the completion notification that woul
 agent never arrives. A runtime that dies mid-turn is reported by whatever is draining its stream, but
 between turns nothing is watching, so the agent sits at `idle` looking healthy while its background
 work is gone. Report that exit as a turn failure so the agent lands in `error` with a timeline entry.
-Only the Claude provider does this today; the others still report a death only when a turn happens to
-be in flight.
+Claude and OMP report exits between turns. OMP relaunches from its session file on the next prompt;
+the unfinished turn is lost.
 
 ### Cancellation