chore: strip remaining pre-fork version references

Second pass — removes chat-switchboard version numbers from config
field docs, section headers, file headers, and test comments. These
were pre-fork version tags that don't apply to switchboard-core.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/store/sqlite/packages.go

@@ -331,7 +331,7 @@ func (s *PackageStore) scanMany(ctx context.Context, query string, args ...inter
 	return result, rows.Err()
 }
 
-// ── Scoped visibility (v0.30.0) ──────────────────
+// ── Scoped visibility ──────────────────
 
 func (s *PackageStore) ListVisiblePackages(ctx context.Context, userID string) ([]store.PackageRegistration, error) {
 	return s.scanMany(ctx, `
@@ -348,7 +348,7 @@ func (s *PackageStore) ListVisiblePackages(ctx context.Context, userID string) (
 		ORDER BY p.source, p.title`, userID, userID)
 }
 
-// ── Package lifecycle (v0.30.0) ──────────────────
+// ── Package lifecycle ──────────────────
 
 func (s *PackageStore) SetSchemaVersion(ctx context.Context, id string, version int) error {
 	result, err := DB.ExecContext(ctx,
@@ -388,7 +388,7 @@ func (s *PackageStore) SetPackageSettings(ctx context.Context, id string, settin
 	return nil
 }
 
-// ── Team-level settings (v0.2.0) ─────────────────
+// ── Team-level settings ─────────────────
 
 func (s *PackageStore) GetTeamSettings(ctx context.Context, pkgID, teamID string) (json.RawMessage, error) {
 	var settings string