feat(infra): modelo de datos del meta-orquestador de flota (flow 0012)

Fase 1, piezas 1+2:
- ClaudeFleet + list_claude_fleet ganan DodContract/DodStatus/Role,
  leidos de goals/<sessionId>.json (.dod_contract/.dod_status/.role).
  Aditivo: fleetview sigue compilando.
- classify_fleet_termination (pura): clasifica el estado de terminacion
  de un agente (RECLAMA/MAL_LANZADO/DICE_TERMINADO/ESTANCADO/TRABAJANDO)
  con precedencia fija, para que un watcher sin LLM decida. 34 tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

functions/infra/classify_fleet_termination.go

@@ -0,0 +1,69 @@
+package infra
+
+// Termination labels returned by ClassifyFleetTermination. They describe the
+// mechanical termination state of a Claude fleet agent so a cheap (LLM-free)
+// watcher can decide what to do with it.
+const (
+	// TerminationReclama means the agent is asking for human input and must be
+	// attended first, above any other consideration.
+	TerminationReclama = "RECLAMA"
+	// TerminationMalLanzado means the agent was launched without a DoD contract
+	// — no agent should run without an acceptance criterion.
+	TerminationMalLanzado = "MAL_LANZADO"
+	// TerminationDiceTerminado means the agent claims it is finished (idle and
+	// either phase "hecho" or its DoD status is "met").
+	TerminationDiceTerminado = "DICE_TERMINADO"
+	// TerminationEstancado means the agent is idle, not finished, and has been
+	// inactive at or beyond the stall threshold.
+	TerminationEstancado = "ESTANCADO"
+	// TerminationTrabajando means the agent is still working (busy, or idle
+	// recently below the stall threshold).
+	TerminationTrabajando = "TRABAJANDO"
+)
+
+// ClassifyFleetTermination mechanically classifies the termination state of a
+// fleet agent. It is pure and deterministic: no I/O, no clock, no global state.
+//
+// Inputs:
+//   - status: process state from sessions.json — "idle" | "busy" | "waiting".
+//   - phase: work phase from goal.json — "investigando", "planificando",
+//     "haciendo", "testeando", "puliendo", "pendiente_revision", "preguntando",
+//     "bloqueado", "en_pausa", "hecho", "iterando" or "".
+//   - dodContract: fixed acceptance criterion ("" means none was defined).
+//   - dodStatus: "pending" | "met" | "failed" | "".
+//   - idleSeconds: seconds since the session's last activity.
+//   - stallThresholdSeconds: threshold to consider the agent stalled.
+//
+// Precedence (evaluated top to bottom; the first match wins):
+//  1. RECLAMA — the agent is asking for human input (status "waiting" OR phase
+//     "preguntando"/"bloqueado"). This dominates everything, even a missing DoD
+//     contract: if it asks for input, that is the first thing to handle.
+//  2. MAL_LANZADO — it does not reclaim input but has no DoD contract; no agent
+//     should run without one.
+//  3. DICE_TERMINADO — idle AND (phase "hecho" OR dodStatus "met").
+//  4. ESTANCADO — idle AND phase not "hecho" AND idleSeconds >= stall threshold.
+//  5. TRABAJANDO — everything else (busy, or idle recently below the threshold).
+func ClassifyFleetTermination(status, phase, dodContract, dodStatus string, idleSeconds, stallThresholdSeconds int) string {
+	// 1. RECLAMA dominates: a request for human input is handled first.
+	if status == "waiting" || phase == "preguntando" || phase == "bloqueado" {
+		return TerminationReclama
+	}
+
+	// 2. MAL_LANZADO: running without a DoD contract is invalid.
+	if dodContract == "" {
+		return TerminationMalLanzado
+	}
+
+	// 3. DICE_TERMINADO: idle and self-reporting completion.
+	if status == "idle" && (phase == "hecho" || dodStatus == "met") {
+		return TerminationDiceTerminado
+	}
+
+	// 4. ESTANCADO: idle, not finished, inactive at/beyond the stall threshold.
+	if status == "idle" && phase != "hecho" && idleSeconds >= stallThresholdSeconds {
+		return TerminationEstancado
+	}
+
+	// 5. TRABAJANDO: busy, or idle recently below the threshold.
+	return TerminationTrabajando
+}