Let the plan name the site an explorbot test run explores

[DavertMik]

Running a saved plan against a global installation was impossible: the command died in config loading before it ever opened the plan.

$ explorbot test ~/plans/pr-3625-run-user-rendering.md
Configuration loaded from: /home/davert/.explorbot/config.js
Failed to start: Failed to load configuration: Error: No site to explore. Pass a URL to the command or set EXPLORBOT_URL.

~/.explorbot/config.js holds models and keys, never a site — every command names the site it runs against. test named none: it built its ExplorBot with from: undefined, so enterGlobalMode had no target. The plan carries the URL all along, in its ### Prerequisite section, so the CLI now reads it before the container is built and passes it as the run target. The same target feeds the EXPLORBOT_* branch of config loading, so a config-free env setup gets the fix too.

src/commands/test-command.ts is unchanged — the gap was in bootstrapping, not in test selection.

Also here:

• explorbot test <planfile> with no index runs every enabled test, as --help and the docs already said. It used to run only the first pending one.
• A plan's URL — its own, else the first test's — becomes Plan.startUrl, replacing the four copies of the expression (CLI twice, both historian writers).

Verification

Smoke run against a real plan with an out-of-range index, so nothing executed past navigation:

Global mode: https://beta.testomat.io stored in ~/.explorbot/sites/beta.testomat.io
Plan loaded: "Run assignee rendering and actions" (8 tests, 8 pending)
Navigating to https://beta.testomat.io/projects/.../runs
Navigation resolved successfully
Failed: Test #99 not found. Available: 1-8

bun test on test-plan, historian, config and global-config: 97 pass.

Notes

• One error-path change: a plan with no Prerequisite URL whose tests are all finished now navigates first and reports "All tests are already complete" instead of "No URL found in plan or tests".
• rerun <file> has the same gap and is left alone here.

🤖 Generated with Claude Code

https://claude.ai/code/session_013W3pakMDZuDEjzm6LCFMCB