fix(glob): use cwd-relative search for ripgrep to fix directory prefix patterns

Ripgrep's --glob flag silently returns zero results when the search target
is an absolute path and the pattern contains directory prefixes (e.g.
'apps/backend/**/*.ts' with '/project'). This is a known ripgrep behavior
where glob matching fails against paths rooted at absolute arguments.

Fix by running ripgrep with cwd set to the search path and '.' as the
search target, matching how the find backend already operates. Ripgrep
then sees relative paths internally, so directory-prefixed globs match
correctly. Output paths are resolved back to absolute via resolve().

src/tools/glob/cli.ts

@@ -1,3 +1,4 @@
+import { resolve } from "node:path"
 import { spawn } from "bun"
 import {
   resolveGrepCli,
@@ -119,10 +120,9 @@ async function runRgFilesInternal(
 
   if (isRg) {
     const args = buildRgArgs(options)
-    const paths = options.paths?.length ? options.paths : ["."]
-    args.push(...paths)
+    cwd = options.paths?.[0] || "."
+    args.push(".")
     command = [cli.path, ...args]
-    cwd = undefined
   } else if (isWindows) {
     command = buildPowerShellCommand(options)
     cwd = undefined
@@ -177,7 +177,7 @@ async function runRgFilesInternal(
 
       let filePath: string
       if (isRg) {
-        filePath = line
+        filePath = cwd ? resolve(cwd, line) : line
       } else if (isWindows) {
         filePath = line.trim()
       } else {

src/tools/glob/tools.ts

@@ -29,12 +29,11 @@ export function createGlobTools(ctx: PluginInput): Record<string, ToolDefinition
         const runtimeCtx = context as Record<string, unknown>
         const dir = typeof runtimeCtx.directory === "string" ? runtimeCtx.directory : ctx.directory
         const searchPath = args.path ? resolve(dir, args.path) : dir
-        const paths = [searchPath]
 
         const result = await runRgFiles(
           {
             pattern: args.pattern,
-            paths,
+            paths: [searchPath],
           },
           cli
         )