Add Google connector service and agent wiki Implement the C/Seobeo Google Drive and Gmail connector with encrypted OAuth storage, Zenbu authentication, browser testing, AI tool discovery, chunked HTTP decoding, and Bazel coverage. Consolidate repository guidance into progressive wiki documentation and enforce arena-first allocation for new first-party C code. Co-authored-by: Copilot <[email protected]> Copilot-Session: 84c338fd-0939-4bb3-b7f3-1062eb213e5d

The *.tcl files in this directory are part of the SQLite's "autoconf"
bundle which are specific to the TEA(-ish) build. During the tarball
generation process, they are copied into <TOP>/autoconf/autosetup/teaish
(which itself is created as part of that process).