feat(server): INGEST_WING_RESOLVE=1 wires the wing resolver into the watcher (#205 S3)

Off by default (retired layout unchanged). On: eligibility from
classification.yaml, local ingest LLM as classifier, BM25 as cross-check,
INGEST_WING_THRESHOLD (default 0.9, rejected outside [0,1]). Build failure
is fatal when explicitly enabled.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

ingestion/internal/wing/configured.go

@@ -0,0 +1,32 @@
+package wing
+
+import (
+	"fmt"
+
+	"github.com/mathiasbq/hyperguild/ingestion/internal/classification"
+)
+
+// NewConfiguredResolver builds the production Resolver for a brain: Known from
+// the wiki, Eligible from classification.yaml (a wing is auto-assignable only
+// when it classifies below Confidential, so an untagged wing never is), the
+// LLM classifier over complete, and BM25 over the known wings as the scorer.
+//
+// Known is read once. A wing created later is unknown to this Resolver until
+// the process restarts, which fails safe: notes aimed at it are parked.
+func NewConfiguredResolver(brainDir string, complete CompleteFunc, threshold float64) (*Resolver, error) {
+	known, err := KnownWings(brainDir)
+	if err != nil {
+		return nil, err
+	}
+	cls, err := classification.Load(brainDir)
+	if err != nil {
+		return nil, fmt.Errorf("load classification: %w", err)
+	}
+	return &Resolver{
+		Known:      known,
+		Eligible:   func(w string) bool { return cls.Wing(w) < classification.Confidential },
+		Classifier: NewLLMClassifier(complete),
+		Scorer:     NewBM25Scorer(brainDir, known, ""),
+		Threshold:  threshold,
+	}, nil
+}