WIP: Rewrite export-html with tree sidebar, client-side rendering

- Add tree sidebar with search and filter (Default/All/Labels)
- Client-side markdown/syntax highlighting via vendored marked.js + highlight.js
- Base64 encode session data to avoid escaping issues
- Reuse theme.ts color tokens via getResolvedThemeColors()
- Sticky sidebar, responsive mobile layout with overlay
- Click tree node to scroll to message
- Keyboard shortcuts: Esc to reset, Ctrl/Cmd+F to search

packages/ai/src/models.generated.ts

@@ -3263,7 +3263,7 @@ export const MODELS = {
 				cacheWrite: 0,
 			},
 			contextWindow: 163840,
-			maxTokens: 163840,
+			maxTokens: 65536,
 		} satisfies Model<"openai-completions">,
 		"deepseek/deepseek-r1-distill-llama-70b": {
 			id: "deepseek/deepseek-r1-distill-llama-70b",
@@ -3563,13 +3563,13 @@ export const MODELS = {
 			reasoning: false,
 			input: ["text", "image"],
 			cost: {
-				input: 0.04,
-				output: 0.15,
+				input: 0.036,
+				output: 0.064,
 				cacheRead: 0,
 				cacheWrite: 0,
 			},
-			contextWindow: 96000,
-			maxTokens: 96000,
+			contextWindow: 131072,
+			maxTokens: 4096,
 		} satisfies Model<"openai-completions">,
 		"google/gemma-3-27b-it:free": {
 			id: "google/gemma-3-27b-it:free",
@@ -5297,8 +5297,8 @@ export const MODELS = {
 			reasoning: true,
 			input: ["text"],
 			cost: {
-				input: 0.039,
-				output: 0.19,
+				input: 0.02,
+				output: 0.09999999999999999,
 				cacheRead: 0,
 				cacheWrite: 0,
 			},
@@ -5348,8 +5348,8 @@ export const MODELS = {
 			reasoning: true,
 			input: ["text"],
 			cost: {
-				input: 0.03,
-				output: 0.14,
+				input: 0.016,
+				output: 0.06,
 				cacheRead: 0,
 				cacheWrite: 0,
 			},
@@ -5994,8 +5994,8 @@ export const MODELS = {
 			reasoning: false,
 			input: ["text"],
 			cost: {
-				input: 0.09,
-				output: 1.1,
+				input: 0.06,
+				output: 0.6,
 				cacheRead: 0,
 				cacheWrite: 0,
 			},