Covers: install, quick start, all 12 commands with full flag tables,
robot mode activation (--robot, --json, env var, TTY auto-detect),
JSON envelope schema, exit codes (0-16), configuration (auth profiles,
aliases, network policy), and architecture overview (cache layout,
index structure, SSRF protection model).
Written for both human engineers and AI agents — structured enough
for LLM consumption while remaining scannable for humans.
