feat(runtime): agent process runtime — persistent records, lifecycle, and verb pack - #1700
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… and verb pack Implements the agentic process runtime: a runtime-owned agents table with enum-checked state columns and partial unique indexes enforcing one non-terminal record per provider session and per-owner idempotency keys; shared AgentState/ TerminalReason/AgentRecord types in khive-types and the AgentStore trait in khive-storage following the existing store-trait convention; a single normative lifecycle transition function with per-row tests including explicit no-op and illegal-transition arms; canonical spawn fingerprinting (ordered-key JSON, BLAKE3); and the khive-pack-agent verb pack exposing agent.spawn/observe/ suspend/resume/kill, with handlers delegating all legality decisions to the one transition function. 44 new tests across the five crates.
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Implements the agent process runtime per ADR-142: persistent agent records in a runtime-owned table (enum-checked columns; partial unique indexes for one-non-terminal-per-provider-session and per-owner idempotency), shared types in khive-types and the AgentStore trait in khive-storage (matching GraphStore/NoteStore/EventStore convention), a single normative transition function covering every row of the lifecycle table including no-op and illegal-transition arms, canonical spawn fingerprinting, and the khive-pack-agent verb pack (agent.spawn/observe/suspend/resume/kill) whose handlers delegate all legality decisions to that one transition function.
Testing: 10 store tests (including the actor-scoped idempotency pair test and provider-session uniqueness incl. suspended holders), 27 lifecycle tests (every transition-table row; mutation-checked — inverting the five no-op/error rows reddens exactly the five predicted tests), 7 pack integration tests through a real VerbRegistry dispatch, plus doc builds clean under -D warnings. Full workspace check passes.