v0.3.0: finish Async Embedding Gateway — mark-vector-stale, cron, defskill, ROADMAP updates

- Add mark-vector-stale(id, content): sets :vector to :pending, queues for re-embed
- Register cron job (embed-all-pending every 10m on :reflex tier via orchestrator)
- Add defskill :passepartout-system-model-embedding (priority 70)
- Remove embedding from topological-sort exclusion list in core-skills
- Export mark-vector-stale in core-defpackage
- Contract: items 4 (mark-vector-stale) and 5 (cron registration)
- Test: test-mark-vector-stale (5 checks)
- ROADMAP: mark Context Manager, Async Embedding Gateway, TUI Experience as DONE
- All v0.3.0 items now complete. Total: 5 suites, 85 checks, 0 failures

docs/ROADMAP.org

@@ -385,7 +385,20 @@ Unified control plane for hooks, cron, and complexity-based routing.
 - Hooked into heartbeat for cron processing
 - Rule-based tier classifier (overrideable via ~*tier-classifier*~)
 
-**** TODO Context Manager (project scoping)
+**** DONE Context Manager (project scoping)
+CLOSED: [2026-05-05 Tue]
+:PROPERTIES:
+:ID:       id-context-manager-scoping
+:CREATED:  [2026-05-05 Tue]
+:END:
+:LOGBOOK:
+- State "DONE" from "TODO" [2026-05-05 Tue]
+:END:
+Stack-based project focusing with persistence.
+- ~push-context~/~pop-context~/~with-context~ stack operations
+- ~current-scope~ wired into perceive gate ~*scope-resolver*~
+- ~/focus~/~/scope~/~/unfocus~ TUI commands
+- Context stack persisted to ~~/.cache/passepartout/context.lisp~, auto-restores on boot
 
 **** DONE Model-Tier Routing (cost optimization) 
 CLOSED: [2026-05-03 Sun 16:00]
@@ -421,24 +434,43 @@ Extend memory-object with ~:scope~ property.
 - ~:memex~ (permanent knowledge), ~:session~ (ephemeral), ~:project~ (current work)
 - Scope-aware retrieval in memory layer
 
-**** TODO Asynchronous Embedding Gateway
-Provider-agnostic vector generation (Ollama, llama.cpp, OpenAI).
-Edits mark nodes as ~:vector :pending~; background worker batches and updates Merkle tree.
+**** DONE Asynchronous Embedding Gateway
+CLOSED: [2026-05-05 Tue]
+:PROPERTIES:
+:ID:       id-async-embedding
+:CREATED:  [2026-05-02 Sat 23:00]
+:END:
+:LOGBOOK:
+- State "DONE" from "TODO" [2026-05-05 Tue]
+:END:
+Provider-agnostic vector generation (Ollama, OpenAI, hashing fallback).
+- Three backends: local (Ollama-compatible), openai (/v1/embeddings), hashing (SHA-256)
+- ~embeddings-compute~ and ~*embedding-backend*~ for runtime provider selection
+- ~ingest-ast~ populates vectors at object creation time
+- ~mark-vector-stale~ marks vectors as ~:pending~ and queues for re-embedding
+- ~embed-all-pending~ drains queue, computes vectors, stores in ~*memory-store*~
+- Cron job registered with orchestrator: runs every 10m on ~:reflex~ tier
+- ~EMBEDDING_PROVIDER~ env var for provider selection
+- Registered as proper skill (~defskill~~:passepartout-system-model-embedding~)
 
-**** TODO TUI Experience (Daily Driver Quality)
-The TUI is a standalone Croatoan app in ~org/gateway-tui.org~.
-None of these changes require daemon modifications — the protocol between TUI and
-daemon (port 9105, framed plists) is stable.
-
-- P0: Chat scrollback (Page Up/Down) — ~2h
-- P0: Input history (up/down arrows) — ~1h
-- P1: Status bar (daemon, model, time) — ~3h
-- P1: Message rendering (timestamps, colors, wrapping) — ~2h
-- P2: Command palette (/help redesign) — ~4h
-- P2: Multi-line input (Shift+Enter) — ~3h
-- P3: Background activity indicator — ~2h
-- P4: Tab completion for / commands — ~3h
-- P4: Configurable theme — ~4h
+**** DONE TUI Experience (Daily Driver Quality)
+CLOSED: [2026-05-05 Tue]
+:PROPERTIES:
+:ID:       id-tui-experience
+:CREATED:  [2026-05-02 Sat 23:00]
+:END:
+:LOGBOOK:
+- State "DONE" from "TODO" [2026-05-05 Tue]
+:END:
+All P0-P4 items implemented:
+- P0: Chat scrollback (Page Up/Down), Input history (up/down arrows)
+- P1: Status bar (connection, mode, msg count, scroll, activity indicator)
+- P1: Message rendering (timestamps, colors, role icons)
+- P2: Command palette (~/help~ command listing)
+- P2: Multi-line input (~\ + Enter~ inserts newline)
+- P3: Background activity indicator (~…thinking~ spinner)
+- P4: Tab completion for all ~/~~ commands
+- P4: Configurable theme (~*tui-theme*~ plist, ~~/theme~~ command)
 
 **** DONE Human-in-the-Loop (HITL)
 CLOSED: [2026-05-03 Sun 14:00]