Fix isolate build + components build on windows (#28559)

Esbuild requires these values to be reasonable like this to work on windows.
Cross platform - what a headache!

GitOrigin-RevId: 290db0ec5702852ba60b5a7c8155687a2a3a36ed

Author: nipunn1313

crates/isolate/build.rs

@@ -19,8 +19,8 @@ use value::sha256::Sha256;
 
 const PACKAGES_DIR: &str = "../../npm-packages";
 const NPM_DIR: &str = "../../npm-packages/convex";
-const SYSTEM_UDFS_DIR: &str = "../../npm-packages/system-udfs/convex/_system";
-const UDF_RUNTIME_DIR: &str = "../../npm-packages/udf-runtime/src";
+const SYSTEM_UDFS_DIR: &str = "../system-udfs/convex/_system";
+const UDF_RUNTIME_DIR: &str = "../udf-runtime/src";
 const UDF_TESTS_DIR: &str = "../../npm-packages/udf-tests";
 const COMPONENT_TESTS_DIR: &str = "../../npm-packages/component-tests/layouts";
 const NODE_EXECUTOR_DIST_DIR: &str = "../../npm-packages/node-executor/dist";
@@ -170,8 +170,8 @@ fn main() -> anyhow::Result<()> {
         .arg("run")
         .arg("--silent")
         .arg("bundle-server")
-        .arg(Path::new(UDF_RUNTIME_DIR).canonicalize()?)
-        .arg(Path::new(SYSTEM_UDFS_DIR).canonicalize()?)
+        .arg(Path::new(UDF_RUNTIME_DIR))
+        .arg(Path::new(SYSTEM_UDFS_DIR))
         .output()
         .context("Failed on npm run bundler")?;
     anyhow::ensure!(

npm-packages/convex/src/cli/lib/components/definition/bundle.ts

@@ -177,8 +177,8 @@ const SHARED_ESBUILD_OPTIONS = {
 
   // place output files in memory at their source locations
   write: false,
-  outdir: "/",
-  outbase: "/",
+  outdir: path.parse(process.cwd()).root,
+  outbase: path.parse(process.cwd()).root,
 
   minify: true,
   keepNames: true,

npm-packages/convex/src/cli/lib/components/definition/directoryStructure.ts

@@ -32,12 +32,7 @@ export function qualifiedDefinitionPath(
   workingDir = ".",
 ) {
   const definitionPath = path.relative(workingDir, directory.definitionPath);
-  // A ./ or ../ prefix make a path "qualified."
-  if (definitionPath.startsWith("./") || definitionPath.startsWith("../")) {
-    return definitionPath;
-  } else {
-    return `./${definitionPath}`;
-  }
+  return `./${definitionPath}`;
 }
 
 // NB: The process cwd will be used to resolve the directory specified in the constructor.