refactor: replace named re-exports with star re-exports in barrel files

Convert export { A, B, ... } from and export type { ... } from blocks
to export * from across all packages (ai, coding-agent, natives, tui, utils).

packages/coding-agent/src/commit/analysis/index.ts

@@ -1,4 +1,4 @@
-export { generateConventionalAnalysis } from "./conventional";
-export { extractScopeCandidates } from "./scope";
-export { generateSummary, stripTypePrefix } from "./summary";
-export { validateAnalysis, validateScope, validateSummary } from "./validation";
+export * from "./conventional";
+export * from "./scope";
+export * from "./summary";
+export * from "./validation";