Batch Approval for AI Tool Calls, fix "AI is thinking" message, chunk JS (#2430)

We now show all Read File/Dir calls together and batch approve them
(backend change to emit them all at once, and FE change to display them
as a batch)

JS chunking for monaco, mermaid, and shiki, etc. shiki is huge, almost
10M but can't be easily split out of Streamdown. Tried making it load
async, but w/ Streamdown we can't do that easily. Trying to split the JS
up because of a build error we were running into in build-helper.

Author: sawka

.gitignore

@@ -17,6 +17,7 @@ make/
 artifacts/
 mikework/
 .env
+out
 
 # Yarn Modern
 .pnp.*

electron.vite.config.ts

@@ -130,6 +130,21 @@ export default defineConfig({
                 input: {
                     index: "index.html",
                 },
+                output: {
+                    manualChunks(id) {
+                        const p = id.replace(/\\/g, "/");
+                        if (p.includes("node_modules/monaco") || p.includes("node_modules/@monaco")) return "monaco";
+                        if (p.includes("node_modules/mermaid") || p.includes("node_modules/@mermaid"))
+                            return "mermaid";
+                        if (p.includes("node_modules/katex") || p.includes("node_modules/@katex")) return "katex";
+                        if (p.includes("node_modules/shiki") || p.includes("node_modules/@shiki")) {
+                            return "shiki";
+                        }
+                        if (p.includes("node_modules/cytoscape") || p.includes("node_modules/@cytoscape"))
+                            return "cytoscape";
+                        return undefined;
+                    },
+                },
             },
         },
         optimizeDeps: {