docs: add Factory AI Droid to all documentation

[peyton-alt]

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[cursor]

PR Summary

Low Risk
Documentation-only changes; no runtime code, config, or security-sensitive logic is modified.

Overview
Updates documentation across the repo to include Factory AI Droid as a supported agent alongside Claude Code/Gemini/OpenCode/Cursor, including requirements, enable flags, hook config location (.factory/settings.json), and agent integration guidance.

Adds Factory AI Droid references to E2E test docs (new mise run test:e2e --agent factoryai-droid, updated E2E_AGENT values, and CI matrix notes) and introduces a dedicated Factory AI Droid section in README.md describing how to enable and use it.

^{Written by Cursor Bugbot for commit 6e5daec. Configure here.}

[Copilot]

Pull request overview

Updates repository documentation to include Factory AI Droid as a supported agent across user docs, architecture docs, and E2E docs.

Changes:

• Add Factory AI Droid to supported-agent lists across README and docs.
• Add Factory AI Droid-specific hook/config references in the agent integration guide/checklist.
• Update E2E documentation to mention Factory AI Droid (and Cursor) in commands, env vars, and CI matrix descriptions.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
e2e/README.md	Documents Factory AI Droid/Cursor in E2E commands, env vars, and CI workflow matrix text
docs/security-and-privacy.md	Adds Factory AI Droid to the set of agents whose data is stored by Entire
docs/architecture/sessions-and-checkpoints.md	Adds Factory AI Droid to the “agent-agnostic” overview
docs/architecture/agent-integration-checklist.md	Adds Factory AI Droid to transcript/export and file-based agent guidance
docs/architecture/agent-guide.md	Adds Factory AI Droid hook config path and hook mapping; updates AgentName/AgentType examples
README.md	Adds Factory AI Droid to prerequisites, enable/workflow narrative, hook locations table, and a new section
CONTRIBUTING.md	Adds Factory AI Droid to contributor-facing docs references
CLAUDE.md	Adds Factory AI Droid to repo overview and E2E documentation snippets
.github/copilot-instructions.md	Expands repository overview agent list to include Factory AI Droid

[Copilot]

The E2E agent name for Cursor in this repo is cursor-cli (see e2e/agents/cursor_cli.go and .github/workflows/e2e.yml), so mise run test:e2e --agent cursor won’t select any agent. Update these docs to use --agent cursor-cli (and keep factoryai-droid as-is).

Suggested change

	mise run test:e2e --agent cursor [filter] # Cursor only
	mise run test:e2e --agent cursor-cli [filter] # Cursor only

[Copilot]

E2E_AGENT must match the E2E agent registry names (e.g., cursor-cli, not cursor). Consider also listing other registered E2E agents that CI runs (copilot-cli, vogon) so the doc matches actual supported values.

[Copilot]

This workflow matrix list doesn’t match .github/workflows/e2e.yml: it uses claude-code, gemini-cli, cursor-cli, etc., and also includes copilot-cli. Update the matrix list here to reflect the actual agent names (or explicitly say it’s a simplified list).

Suggested change

	- **`.github/workflows/e2e.yml`** — Runs full suite on push to main. Matrix: `[claude, opencode, gemini, cursor, factoryai-droid]`.
	- **`.github/workflows/e2e.yml`** — Runs full suite on push to main. Simplified matrix summary: `[claude, opencode, gemini, cursor, factoryai-droid]` (see the workflow file for the exact agent IDs).

[Copilot]

The E2E agent selector for Cursor is cursor-cli (not cursor) in this repo, so this command example won’t work as written. Update it to mise run test:e2e --agent cursor-cli [filter].

Suggested change

	mise run test:e2e --agent cursor [filter] # Cursor only
	mise run test:e2e --agent cursor-cli [filter] # Cursor only

[Copilot]

E2E_AGENT values here should match the E2E agent registry names. In this repo those include gemini-cli (not gemini) and cursor-cli (not cursor), and CI also runs copilot-cli (see .github/workflows/e2e.yml). Update this list so readers can copy/paste valid values.