refactor(cdp): make session.call generic over the command table

call/callOnTarget/callBrowser now take a known method and return its
decoded result type. The session is where unknown ends; transport keeps
returning unknown. Removes the casts in session.ts and target-factory.ts,
including the session's own internal Target.*/Browser.* calls, which now
decode through the same path as the public call methods.

Also completes two params-schema gaps in commands.ts surfaced by this
migration: Target.createTarget was missing openerId and Runtime.evaluate
was missing userGesture, both real CDP fields src/cdp/ already sends.

tsc is red project-wide (6 errors, all in src/domains/) — the sanctioned
state between Tasks 4 and 7.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/src/cdp/commands.ts b/src/cdp/commands.ts
index 123b9f6..d7faa34 100644
--- a/src/cdp/commands.ts
+++ b/src/cdp/commands.ts
@@ -57,6 +57,7 @@ export const COMMANDS = {
       newWindow: Type.Optional(Type.Boolean()),
       background: Type.Optional(Type.Boolean()),
       windowId: Type.Optional(Type.Number()),
+      openerId: Type.Optional(Type.String()),
     }),
     Type.Object({ targetId: Type.String() }),
   ),
@@ -129,7 +130,12 @@ export const COMMANDS = {
   // --- Runtime ---
   "Runtime.evaluate": cmd(
     Type.Object(
-      { expression: Type.String(), returnByValue: Type.Optional(Type.Boolean()), awaitPromise: Type.Optional(Type.Boolean()) },
+      {
+        expression: Type.String(),
+        returnByValue: Type.Optional(Type.Boolean()),
+        awaitPromise: Type.Optional(Type.Boolean()),
+        userGesture: Type.Optional(Type.Boolean()),
+      },
       { additionalProperties: true },
     ),
     Type.Object({ result: RemoteObject, exceptionDetails: Type.Optional(ExceptionDetails) }),