Add ollama dependency and dialog backdrop blur

- Add ollama package to web-ui dependencies for ModelSelector
- Add backdrop blur to SettingsDialog (bg-black/50 backdrop-blur-sm)
- Update mini-lit to 0.1.9 for backdropClassName prop support
- Fix TypeScript errors in ModelSelector (ollama import, parameter types)
- Add backward compatibility methods to SessionsStore (saveSession, loadSession, getLatestSessionId)

packages/web-ui/src/dialogs/ModelSelector.ts

@@ -101,7 +101,7 @@ export class ModelSelector extends DialogBase {
 
 			// Fetch details for each model and convert to Model format
 			const ollamaModelPromises: Promise<Model<any> | null>[] = models
-				.map(async (model) => {
+				.map(async (model: any) => {
 					try {
 						// Get model details
 						const details = await ollama.show({
@@ -144,7 +144,7 @@ export class ModelSelector extends DialogBase {
 						return null;
 					}
 				})
-				.filter((m) => m !== null);
+				.filter((m: any) => m !== null);
 
 			const results = await Promise.all(ollamaModelPromises);
 			this.ollamaModels = results.filter((m): m is Model<any> => m !== null);

packages/web-ui/src/dialogs/SettingsDialog.ts

@@ -179,6 +179,7 @@ export class SettingsDialog extends LitElement {
 			},
 			width: "min(1000px, 90vw)",
 			height: "min(800px, 90vh)",
+			backdropClassName: "bg-black/50 backdrop-blur-sm",
 			children: html`
 				${DialogContent({
 					className: "h-full p-6",