feat(dsh-plugin): add Browser tool parity

packages/dsh-plugin-browserskill/src/tool-params.ts

@@ -0,0 +1,24 @@
+/** Shared model-facing parameter schemas for browser tools. */
+
+export const SESSION_PARAM = {
+  type: "string",
+  description:
+    "bsk session id to act on; must be one created by this plugin's browser_session_start. " +
+    "Omit to use the current session (the one most recently started or used).",
+} as const;
+
+export const TAB_ID_PARAM = {
+  type: "integer",
+  description: "Target tab id. Omit to use the Agent Window's active tab.",
+} as const;
+
+export const WAIT_UNTIL_PARAM = {
+  type: "string",
+  enum: ["load", "domcontentloaded", "networkidle", "commit"],
+  description: "Page lifecycle phase to wait for (default: load).",
+} as const;
+
+export const TIMEOUT_MS_PARAM = {
+  type: "integer",
+  description: "Command timeout in milliseconds; must be greater than zero.",
+} as const;