add portfolio loader export

src/root.zig

@@ -86,13 +86,21 @@ pub const analysis = @import("analytics/analysis.zig");
 
 /// Portfolio-vs-brokerage reconciliation (pure compute): compare
 /// accounts, ratio-update suggestions, absent-account detection. The
-/// audit command renders these; downstream tools (finrev) consume them.
+/// audit command renders these; downstream tools consume them.
 pub const reconcile = @import("analytics/reconcile.zig");
 
 /// Brokerage export parsers (Schwab/Fidelity/Wells Fargo positions +
 /// summary) and the normalized `BrokeragePosition` shape.
 pub const brokerage = @import("brokerage.zig");
 
+/// Portfolio loading from srf files: the union-merge loader the CLI uses
+/// (`loadPortfolioFromPaths`, `loadPortfolioFromConfig`, `LoadedPortfolio`).
+/// Exported so downstream tools can build a `Portfolio` from
+/// portfolio.srf without reimplementing the loader - pair it with
+/// `DataService.loadAllPrices` to get the price map the `reconcile`
+/// compute functions expect.
+pub const portfolio_loader = @import("portfolio_loader.zig");
+
 // ── Market calendar ──────────────────────────────────────────
 
 /// Trading-day calendar (NYSE holidays, weekends) and market-aware