So Many Crows v1: Sentry triage, crows, guardrails, trust ledger

Go command-line tool. Sentry classifies each todo item as solo, split,
or murder; text-only crows fly under budget, timeout, and flock caps;
trust is earned per crow and per task type; abusive requesters get a
mild, fading cooldown. Runs offline with a mock brain.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UQnSw4RRWp8uqpj3nsnnXF

flightlog.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+)
+
+// Event is one line in the flight log: every triage, flight and verdict.
+type Event struct {
+	Time      time.Time `json:"ts"`
+	Kind      string    `json:"kind"`
+	Requester string    `json:"requester,omitempty"`
+	Item      string    `json:"item,omitempty"`
+	Crow      string    `json:"crow,omitempty"`
+	Mode      string    `json:"mode,omitempty"`
+	TaskType  string    `json:"task_type,omitempty"`
+	Tokens    int       `json:"tokens,omitempty"`
+	Ms        int64     `json:"ms,omitempty"`
+	Verdict   string    `json:"verdict,omitempty"`
+	Output    string    `json:"output,omitempty"`
+	Error     string    `json:"error,omitempty"`
+	Note      string    `json:"note,omitempty"`
+}
+
+type FlightLog struct {
+	mu sync.Mutex
+	f  *os.File
+}
+
+func OpenFlightLog(path string) (*FlightLog, error) {
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		return nil, err
+	}
+	f, err := os.OpenFile(path, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644)
+	if err != nil {
+		return nil, err
+	}
+	return &FlightLog{f: f}, nil
+}
+
+func (l *FlightLog) Write(e Event) {
+	l.mu.Lock()
+	defer l.mu.Unlock()
+	e.Time = time.Now()
+	b, _ := json.Marshal(e)
+	l.f.Write(append(b, '\n'))
+}
+
+func (l *FlightLog) Close() error { return l.f.Close() }