Add support for multiple accounts

[friuns]

[friuns]

/opencode implement

[opencode-agent]

Created PR #17

opencode session  |  github run

[friuns]

/oc when i change account repositories not refreshed, attach screenshot to pull request

[friuns]

/opencode when i change account repositories not refreshed, attach screenshot to pull request

[opencode-agent]

Created PR #18

opencode session  |  github run