feat(plugins): let plugin code open streaming log tabs (#2082)

views.open-log-tab(key, title, process-log) (SDK host::open_log_tab) opens the read-only log tab a web view opens with open-log-tab, from a command or event of a window, reusing the Services pane's process-log.

The host checks the process grant and limits when called and remembers what each key runs in that window; the tab starts it by key (plugin_log_tab_spawn) through the web-view PTY checks: pinned program, trusted project, session cap, lifecycle and grant revocation. Remote windows report that these tabs aren't available there yet.

plugins/official/string-tools/dist/plugin.wasm.sources

@@ -1 +1 @@
-548c6ed16fcd5d3a053bf6d8417d52ebd0fd74138d0665e9205eb8bf32ec497a
+f4e37cdac925f376bac945d5bb86c648b559787aa22737e6440835456f9f74cf