[clsi] initial implementation of compile from history (#31883)

* [clsi] initial implementation of compile from history

* [clsi] copy changes

* [saas-e2e] extend test case with nested folder

* [saas-e2e] add test case for tracked changes

* [web] fix accumulating changes from multiple chunks

* [web] optimize size check for compile request payload

* [clsi] deduplicate globalBlobs

* [clsi] add validation for request body details

* [clsi] add metrics for compile from history

* [clsi] download binary files concurrently

* [clsi] skip download of empty file blob

* [clsi] break down e2e compile time metric by compileFromHistory

GitOrigin-RevId: 0dadef93e89d8a172c35cb130a1042d9d1bec42a

services/web/frontend/js/shared/context/local-compile-context.tsx

@@ -151,7 +151,7 @@ export const LocalCompileProvider: FC<React.PropsWithChildren> = ({
   const { features, alphaProgram } = useUserContext()
 
   const { fileTreeData } = useFileTreeData()
-  const { findEntityByPath } = useFileTreePathContext()
+  const { pathInFolder, findEntityByPath } = useFileTreePathContext()
 
   // whether a compile is in progress
   const [compiling, setCompiling] = useState(false)
@@ -342,8 +342,12 @@ export const LocalCompileProvider: FC<React.PropsWithChildren> = ({
 
   // keep the project rootDocId in sync with the compiler
   useEffect(() => {
-    compiler.projectRootDocId = rootDocId
+    compiler.projectRootDocId = rootDocId || null
   }, [compiler, rootDocId])
+  // keep pathInFolder in sync with the compiler
+  useEffect(() => {
+    compiler.pathInFolder = pathInFolder
+  }, [compiler, pathInFolder])
 
   // keep draft setting in sync with the compiler
   useEffect(() => {