fix(diary): skip HideOnTTY records only on a terminal console, also with forced color (IN-01, quick-261028-rqd)

modules/diary/console.go

@@ -40,7 +40,9 @@ type ConsoleOptions struct {
 // the message and attribute values, so logged data cannot inject terminal
 // escape sequences. Each line is written with one Write call, serialized
 // across the handler and its WithAttrs and WithGroup clones; while a bonfire
-// live view runs, lines print above it through bonfire.PrintAbove.
+// live view runs, lines print above it through bonfire.PrintAbove. Records
+// marked with HideOnTTY are skipped only when w is a terminal (checked once
+// here), so forced color on a redirected stream keeps them.
 func NewConsoleHandler(w io.Writer, opts ConsoleOptions) slog.Handler {
 	source := new(atomic.Bool)
 	source.Store(opts.AddSource)
@@ -53,11 +55,12 @@ func newConsoleHandler(w io.Writer, opts ConsoleOptions, source *atomic.Bool) *c
 		level = slog.LevelInfo
 	}
 	return &consoleHandler{
-		out:     &colorprofile.Writer{Forward: w, Profile: opts.Profile},
-		mu:      new(sync.Mutex),
-		level:   level,
-		source:  source,
-		palette: bonfire.DefaultPalette(),
+		out:      &colorprofile.Writer{Forward: w, Profile: opts.Profile},
+		terminal: isTerminal(w),
+		mu:       new(sync.Mutex),
+		level:    level,
+		source:   source,
+		palette:  bonfire.DefaultPalette(),
 	}
 }
 
@@ -67,11 +70,15 @@ type consoleAttr struct {
 }
 
 type consoleHandler struct {
-	out       io.Writer
-	mu        *sync.Mutex
-	level     slog.Leveler
-	source    *atomic.Bool
-	palette   bonfire.Palette
+	out     io.Writer
+	mu      *sync.Mutex
+	level   slog.Leveler
+	source  *atomic.Bool
+	palette bonfire.Palette
+	// terminal is true when the handler's writer is a terminal, checked
+	// once when the handler is built: only then are HideOnTTY records
+	// skipped.
+	terminal  bool
 	component string
 	attrs     []consoleAttr
 	groups    []string
@@ -114,9 +121,10 @@ func (h *consoleHandler) WithGroup(name string) slog.Handler {
 }
 
 func (h *consoleHandler) Handle(ctx context.Context, r slog.Record) error {
-	// The styled console is read by a person; facts already shown as a
-	// block (HideOnTTY) are not repeated as log lines.
-	if hiddenOnTTY(ctx) {
+	// A console on a terminal is read by a person; facts already shown as
+	// a block (HideOnTTY) are not repeated as log lines. Forced color on a
+	// redirected stream keeps them.
+	if h.terminal && hiddenOnTTY(ctx) {
 		return nil
 	}
 	component := h.component