Swap to private solarweb access

AGENTS.md

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+# Private configuration
+
+`config.toml` is private and must remain secret from coding agents.
+
+- Never open, read, search, copy, print, diff, or otherwise inspect that file's contents with agent tools or helper scripts.
+- Exclude it explicitly from repository searches, even when searching ignored files.
+- The application may load its private configuration internally during user-authorized runs; this does not authorize displaying or inspecting the configuration or credentials. Use isolated tests with synthetic configuration and credentials for unit verification.
+- Make configuration changes only in `config.example.toml`; the user maintains the private file.
+- Do not inspect or log credentials, runtime session cookies, or authentication tokens. The user permits inspecting API/chart response data for debugging.