docs(readme): document the code docs (wiki) feature

[efenocchi]

Adds a concise Code docs (wiki) section under Codebase graph — the whole hivemind docs feature (sync/list/auto/agent, install onboarding, background generation, agent resolution) was undocumented.

README-only; no code changes.

Codex review skipped for a pure-docs prose change (no logic to review) — say the word if you want it anyway.

Summary by CodeRabbit

• Documentation
  • Added a “Code docs (wiki)” section describing how to generate and synchronize documentation pages.
  • Documented options for automatic updates, checking documentation status, and configuring the documentation provider.
  • Clarified background generation and setup through the installation workflow.

[coderabbitai]

📝 Walkthrough

Walkthrough

README adds a “Code docs (wiki)” section describing wiki generation from the codebase graph, hivemind docs commands, background execution through a host CLI, and setup during hivemind install.

Changes

Code documentation workflow

Layer / File(s)	Summary
Document code wiki workflow README.md	Documents per-file and subsystem wiki generation, sync and status commands, automatic refresh settings, host-agent selection, background CLI execution, and installation setup in git repositories.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Suggested reviewers: kaghni, khustup2

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the README docs/wiki documentation update and is concise.
Description check	✅ Passed	It includes a solid Summary and notes the change is README-only, but it omits the template's Version Bump and Test plan sections.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/readme-code-docs

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[github-actions]

Coverage Report

No src/*.ts files changed in this PR.

_{Generated for commit 9037f9b.}

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@README.md`:
- Around line 462-465: Update the agent-resolution sentence in the README to
include HIVEMIND_DOCS_LLM_BIN as the environment variable for configuring a
custom host CLI, alongside the existing built-in agent resolution and precedence
details.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 03114365-29b9-4bbe-a779-21f3b480f95f

📥 Commits

Reviewing files that changed from the base of the PR and between c01029a and 2055842.

📒 Files selected for processing (1)

• README.md

[coderabbitai]

📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

Document the custom-agent escape hatch.

src/commands/docs.ts:353-384 supports arbitrary host CLIs through HIVEMIND_DOCS_LLM_BIN, but the README only lists the built-in agents. Add this variable to the agent-resolution sentence so users of other CLIs can configure the feature.

Suggested documentation update

- The agent is resolved as `HIVEMIND_DOCS_LLM_AGENT` (env) > `docs.llmAgent` (config) > auto-detect;
+ The agent is resolved as `HIVEMIND_DOCS_LLM_AGENT` (env) > `docs.llmAgent` (config) > auto-detect;
+ use `HIVEMIND_DOCS_LLM_BIN` to configure any other host CLI.

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	hivemind docs agent [name] # which host CLI writes the docs (claude|codex|pi|cursor)
	```
	Generation shells out to a host agent's own CLI (`claude -p`, `codex exec`, …) — no separate API key — and runs **in the background**, so it never blocks. `hivemind install` inside a git repo offers to set this up for you. The agent is resolved as `HIVEMIND_DOCS_LLM_AGENT` (env) > `docs.llmAgent` (config) > auto-detect; per-file docs use a cheap model, wiki pages a stronger one.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@README.md` around lines 462 - 465, Update the agent-resolution sentence in
the README to include HIVEMIND_DOCS_LLM_BIN as the environment variable for
configuring a custom host CLI, alongside the existing built-in agent resolution
and precedence details.