docs: Phase 8 documentation - Gitea, Obsidian, Outline, Vikunja, map (AUD-74)

- README: architecture Mermaid, Phase 8 status, Phase 7 endpoints, Documentation index
- docs/outline/: AI-context collection (index, system, config, code map, runbook)
- docs/email-agent-architecture.mmd + rendered PNG + Archify map (showcase pass)
- docs/vikunja-tasks.json (Vikunja project 17, tasks 179-185)
- docs/phase8-documentation.md evidence

docs/outline/00-index.md

@@ -0,0 +1,44 @@
+# Email Agent — AI Document Index
+
+> **Target**: AI agents.
+> **Writing style**: ASD-STE100 Simplified Technical English.
+
+## Document catalog
+
+Read this index. Inject the exact document you need. Do not search all files.
+
+| Document | Path | Scope |
+| :--- | :--- | :--- |
+| **System Overview** | `docs/outline/01-system-overview.md` | Purpose, architecture, services, phase status. |
+| **Configuration and Environment** | `docs/outline/02-config-and-env.md` | Environment variables, config paths, ports, secrets. |
+| **Code Map** | `docs/outline/03-code-map.md` | Folder structure, entry points, dependencies, schema. |
+| **Agent Runbook** | `docs/outline/04-agent-runbook.md` | Commands to test, deploy, restart, and roll back. |
+
+The build spec is `AGENTS.md`. The phase evidence files are `docs/phaseN-*.md`.
+The interactive map is `docs/email-agent-map.html`.
+
+## System summary
+
+The Email Agent triages the family inbox. All mail lands in one Gmail account.
+Sam opens one page, clears the inbox in minutes, and sees nothing important
+missed. The service reads Gmail over IMAP, classifies each message with JEV,
+recommends an action, applies bulk actions, drafts replies, and answers the Hub.
+
+## Core configuration
+
+- **Secrets file**: `~/.config/environment.d/10-secrets.conf` (mode 600).
+- **Project directory**: `/home/sam/paseo/projects/email_agent/`.
+- **Live host**: `.13`, one container, own image.
+- **Live port**: `8790`. Public URL: `https://mail.lab.audasmedia.com.au`.
+- **Database**: SQLite at `/data/email_agent.db` on the `email_agent_data` volume.
+
+## Agent restart steps
+
+1. Read the catalog above. Inject only the documents you need.
+2. Check git status: `git status`.
+3. Check recent commits: `git log -n 5 --oneline`.
+4. Run the Go tests in a container:
+
+   ```sh
+   timeout 600 docker run --rm -v "$PWD":/src -w /src golang:1.25-alpine go test ./...
+   ```