fix keymap fallback priority and TUI config diagnostics (#27384)

packages/opencode/test/config/tui.test.ts

@@ -439,6 +439,25 @@ it.instance("merges keybind overrides across precedence layers", () =>
   ),
 )
 
+it.instance("ignores unknown keybind names without dropping valid overrides from the same file", () =>
+  withCleanState(
+    Effect.gen(function* () {
+      const fs = yield* AppFileSystem.Service
+      const test = yield* TestInstance
+      yield* fs.writeJson(path.join(Global.Path.config, "tui.json"), {
+        keybinds: {
+          session_delete: "ctrl+d",
+          not_a_real_keybind: "ctrl+q",
+        },
+      })
+
+      const config = yield* getTuiConfig(test.directory)
+      expect(config.keybinds.get("session.delete")?.[0]?.key).toBe("ctrl+d")
+      expect(config.keybinds.get("not_a_real_keybind")).toEqual([])
+    }),
+  ),
+)
+
 it.instance("resolves keybind lookup from canonical keybinds", () =>
   withCleanState(
     Effect.gen(function* () {

packages/opencode/test/util/log.test.ts

@@ -47,3 +47,31 @@ it.live("init cleanup keeps the newest timestamped logs", () =>
     expect(next).toContain(list.at(-1)!)
   }),
 )
+
+it.live("local dev log is not truncated twice for the same run", () =>
+  Effect.gen(function* () {
+    const log = Global.Path.log
+    const runID = process.env.OPENCODE_RUN_ID
+    const initialized = process.env.OPENCODE_LOG_INITIALIZED_RUN_ID
+    yield* Effect.addFinalizer(() =>
+      Effect.sync(() => {
+        Global.Path.log = log
+        if (runID === undefined) delete process.env.OPENCODE_RUN_ID
+        else process.env.OPENCODE_RUN_ID = runID
+        if (initialized === undefined) delete process.env.OPENCODE_LOG_INITIALIZED_RUN_ID
+        else process.env.OPENCODE_LOG_INITIALIZED_RUN_ID = initialized
+      }),
+    )
+
+    const dir = yield* tmpdirScoped()
+    Global.Path.log = dir
+    process.env.OPENCODE_RUN_ID = "run-1"
+    delete process.env.OPENCODE_LOG_INITIALIZED_RUN_ID
+
+    yield* Effect.promise(() => Log.init({ print: false, dev: true }))
+    yield* Effect.promise(() => fs.writeFile(path.join(dir, "dev.log"), "main startup\n"))
+    yield* Effect.promise(() => Log.init({ print: false, dev: true }))
+
+    expect(yield* Effect.promise(() => fs.readFile(path.join(dir, "dev.log"), "utf8"))).toContain("main startup")
+  }),
+)