Merge branch 'dev' into migrate-provider

Replace Bun.file().json() with Filesystem.readJson():

- Add Filesystem import from ../util/filesystem

- Replace Bun.file().json() with Filesystem.readJson<T>() with proper type parameter

All 222 provider tests pass.

packages/opencode/src/provider/provider.ts

@@ -16,6 +16,7 @@ import { Flag } from "../flag/flag"
 import { iife } from "@/util/iife"
 import { Global } from "../global"
 import path from "path"
+import { Filesystem } from "../util/filesystem"
 
 // Direct imports for bundled providers
 import { createAmazonBedrock, type AmazonBedrockProviderSettings } from "@ai-sdk/amazon-bedrock"
@@ -1291,8 +1292,9 @@ export namespace Provider {
     if (cfg.model) return parseModel(cfg.model)
 
     const providers = await list()
-    const recent = (await Bun.file(path.join(Global.Path.state, "model.json"))
-      .json()
+    const recent = (await Filesystem.readJson<{ recent?: { providerID: string; modelID: string }[] }>(
+      path.join(Global.Path.state, "model.json"),
+    )
       .then((x) => (Array.isArray(x.recent) ? x.recent : []))
       .catch(() => [])) as { providerID: string; modelID: string }[]
     for (const entry of recent) {

packages/opencode/src/shell/shell.ts

@@ -1,6 +1,5 @@
 import { Flag } from "@/flag/flag"
 import { lazy } from "@/util/lazy"
-import { Filesystem } from "@/util/filesystem"
 import path from "path"
 import { spawn, type ChildProcess } from "child_process"
 
@@ -44,7 +43,7 @@ export namespace Shell {
         // git.exe is typically at: C:\Program Files\Git\cmd\git.exe
         // bash.exe is at: C:\Program Files\Git\bin\bash.exe
         const bash = path.join(git, "..", "..", "bin", "bash.exe")
-        if (Filesystem.stat(bash)?.size) return bash
+        if (Bun.file(bash).size) return bash
       }
       return process.env.COMSPEC || "cmd.exe"
     }