Share one exporter, and flush the file before saying it is written (#686)

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>

crates/yaak/src/export.rs

@@ -1,27 +0,0 @@
-use crate::Result;
-use yaak_models::query_manager::QueryManager;
-use yaak_models::util::get_workspace_export_resources;
-
-pub struct ExportDataParams<'a> {
-    pub query_manager: &'a QueryManager,
-    pub yaak_version: &'a str,
-    pub workspace_ids: Vec<&'a str>,
-    pub include_private_environments: bool,
-}
-
-/// The export document, as JSON.
-///
-/// Returned rather than written: where an export goes is the host's to decide, and a browser
-/// tab has no path to be handed. The desktop hands the bytes to its save dialog; a tab hands
-/// them to a download. Neither needs this function to know which.
-pub fn export_data(params: ExportDataParams<'_>) -> Result<String> {
-    let db = params.query_manager.connect();
-    let export_data = get_workspace_export_resources(
-        &db,
-        params.yaak_version,
-        params.workspace_ids,
-        params.include_private_environments,
-    )?;
-
-    Ok(serde_json::to_string_pretty(&export_data)?)
-}

crates/yaak/src/lib.rs

@@ -1,6 +1,5 @@
 pub mod error;
 pub mod example;
-pub mod export;
 pub mod import;
 pub mod plugin_events;
 pub mod response_body;