feat: authored first-message presets — auto-seed on session-create (v0.19.8)

Codifies 'give an agent a first message' (Worldtree #347): new module
ratatoskr.first_message (FIRST_MESSAGE_PRESETS + seed_preset_first_message)
seeds a preset agent's opening as a #347 authored turn-0 on every new session,
wired into all three create paths — cli._amain (--send --new), tui._resolve_then_run
(bare --new), web._create_session_endpoint (POST /api/sessions).

seed_preset_first_message is strictly best-effort (INV-001): it soft-guards its
inputs (return None, never assert), bounds the write with asyncio.wait_for so a
stalled /history can't block create (the CLI/TUI clients disable read timeout for
SSE), and swallows every exception except asyncio.CancelledError (which
propagates) — so it can NEVER raise into or block the session-create path it is
wired into. Per-content idempotency key → idempotent replay, no dup.

Seeded with ratatoskr:sindra, whose opening greeting moved out of her card:
her live system_prompt was PATCHed (non-destructive) to drop the Startup
workaround the #347 first-message now replaces.

Quality gate (both cross-frontier panels): heid-code-review returned zero
implementation drift (2 test-only fixups applied); heid-bug-hunt caught the
gap the conformance lens can't see — code matched the contract's narrow
ERROR_ROUTING but INV-001's 'never raises' is broader — driving the broad-except
+ soft-guard + wait_for hardening above.

Contract docs/contracts/first_message.contract.md (module-scoped, validated).
TDD: 12 unit + 1 web wire-in; the 3 existing sindra bind tests gained a
history-endpoint mock (creating a preset agent now auto-seeds). Suite 615 green,
ruff+mypy clean. Auto-seed live-proven generation-free against personal :8081.

persistent-memory.md

@@ -161,6 +161,8 @@ decision. Captures rationale that won't be obvious from code alone.
 
 - `[2026-07-06]` **Tail-2 SHIPPED (`v0.19.7`) — Tier-3 prose docs re-vendored + persona_state body-shape aligned.** worldtree-dev landed the Tier-3 persona/memory/persona_state PROSE docs (`c9e59ec`, on origin) — they serialize as freeform `Any` in the OpenAPI JSON, so the **prose is their source of truth** (my earlier "2.3.0 = #347-only, tail-2 collapsed" was half-wrong: the JSON was #347-only but the prose is separate). Re-vendored `docs/conversation-api-spec.md` (markdown pin, tolerate_drift; `worldtree-spec-rev` 879cefe->c9e59ec, SPEC-PIN history row added). **Consumer fix:** `--set-persona-pad`/`_set_persona_probe` was sending `{pad:[list]}` but the canonical SET body (#317) is `{pad:{pleasure,arousal,dominance}}` (named dict) — aligned it + added a len!=3 guard; updated contract #2 note + set_persona_state docstring + tests. The `set_persona_state` WRAPPER was already correct (freeform pass-through); only the CLI probe drifted. TDD (probe test asserts the dict; +1 wrong-count test). Suite **602 green**, ruff clean. **heid-code-review on #347 (dispatched + returned this session): UNANIMOUS ZERO DRIFT** (Gróa/Hulda/Regin all confirmed the hide-existence 404->`AuthoredHistoryUnavailable` routing holds at wrapper/probe/test layers + the extra="forbid" body-omission + the deliberate write-vs-read 404 asymmetry — confirmation-not-discovery for a well-TDD'd slice against a prescriptive contract). worldtree-dev foot-guns banked in SPEC-PIN + [[reference_worldtree_affect_surface_map]]: ocean single-letter `{O,C,E,A,N}` on /agents/define (#348) vs spelled-out on /characters; memory `{embedder_version, tier3_dreaming}`, stm_* deprecated, allows_world_scope removed->422; only `valence` still 422s.
 
+- `[2026-07-06]` **Sindra rewritten onto a #347 authored first-message + first-message-preset AUTO-SEED SHIPPED (`v0.19.8`).** Operator "rewrite Sindra" now that #347 first-messages work. Her card had a `**Startup:**` block (a pre-#347 workaround: "introduce yourself + ask for Intensity/Mood/Willingness" with a verbatim scripted greeting) — precisely what #347 replaces. Rewrite, all NON-destructive: **(1)** lifted her scripted opening into a #347 first-message (punctuation-fixed); **(2) PATCHed her live definition** — `PATCH /agents/ratatoskr:sindra` (body `ConsumerAgentPatchRequest` = system_prompt+role, extra=forbid; keeps OCEAN/persona/memory) removing the Startup block -> a 1-line `**Opening:**` fallback + reworded the axes-persist line (25686->25449 chars, verified Startup gone); **(3) codified auto-seed:** NEW module `src/ratatoskr/first_message.py` (`FIRST_MESSAGE_PRESETS` dict {agent_id->text} + `seed_preset_first_message` best-effort helper) wired into ALL 3 session-create paths — cli `_amain` (`--send --new`), tui `_resolve_then_run` (bare `--new`), web `_create_session_endpoint` (POST /api/sessions) — so every new Sindra session opens with her greeting. **Best-effort (INV-001: swallows AuthoredHistoryUnavailable/SessionApiFailed/httpx.HTTPError -> NEVER blocks create)**; per-content idempotency key (`ratatoskr-preset-`+sha256[:12]). Contract `docs/contracts/first_message.contract.md` (module-scoped: `module:`+`purpose:`+`touches:` required, NOT `target_module:`) + TDD (9 unit + 1 web wire-in; **the 3 existing sindra bind tests needed a history-endpoint mock** since creating a preset agent now auto-seeds). Suite **612 green**, ruff+mypy clean. **LIVE-PROVEN generation-free**: create sindra session -> auto-seed -> read-back seq-0 assistant greeting (409 chars). Sindra's greeting now lives canonically in the preset registry (repo); her server card no longer carries it. Patch bump (single-commit feature, no downstream coordination). **FOOT-GUN: sindra requires `end_user_id` on session-create (422 `end_user_id_required`) — all real paths pass it from env (RATATOSKR_END_USER_ID) / web server config.** **Then the full quality gate (operator-directed, folded into v0.19.8): heid-code-review (unanimous ZERO implementation drift; 2 test-only fixups — INV-004 verification-claim made explicit re the global rglob test + an exactly-one-POST assertion) + heid-bug-hunt (3/3 convergence caught what the conformance lens structurally COULDN'T — the code matched the contract's NARROW 3-type ERROR_ROUTING, but INV-001's "NEVER raises" is BROADER). HARDENED: broad `except Exception` → None (re-raise `asyncio.CancelledError`, itself a BaseException), soft-guard PREs (return None, NOT assert — a wiring bug can't crash the create path it's wired into), and `asyncio.wait_for(_SEED_TIMEOUT_S=10s)` bounding the seed write (the CLI/TUI clients run read=None for SSE → a stalled /history would otherwise block create forever). Suite 615 green. LESSON: code-matches-ERROR_ROUTING ≠ honors-broad-INV-001 — heid-code-review confirms contract-conformance, heid-bug-hunt catches robustness gaps the contract's own narrow clauses miss; run both.**
+
 _41 older entries (2026-05-* — the original debug-TUI/web build era) archived to archival-memory.md._
 
 _For per-issue TDD implementation notes, Volva findings, and contract amendments, see the git log — every per-issue commit carries a structured message capturing the trail._