fix(autogpt): migrate service to AutoGPT Platform

[ntindle]

Summary

• replace Harbor's dormant Auto-GPT Classic service with the current significantgravitas/autogpt all-in-one Platform image on port 3000
• persist Platform state in a Docker-managed /data volume and expose exact-origin, registration, image, and version settings through Harbor config
• bridge Harbor's shared OpenRouter, OpenAI, Anthropic, and Groq keys without requiring users to duplicate provider secrets
• add an autogpt + ollama combination for local chat and Graphiti, including generation/embedding model pulls and a configurable context window
• make direct and Traefik public URLs route-aware while preserving an explicit exact-origin override for LAN, proxy, and non-default HTTPS-port setups
• replace the stale Classic env reference with Platform-specific setup, upgrade, resource, backup, and provider documentation

Runtime validation

• cold-booted significantgravitas/autogpt:latest; container reached healthy and the Platform UI, login, and account-creation routes returned successfully
• verified /data persistence across restart, 2 GiB shared memory, and the configured nofile limit
• brought up the combined AutoGPT/Ollama topology; both model pulls completed, Graphiti's nomic-embed-text endpoint returned 768-dimensional vectors, and all services reached healthy
• verified OpenRouter accepts AutoGPT's unqualified text-embedding-3-small request and returns exactly 1,536 dimensions
• rendered direct, changed-port, Ollama, Traefik, and explicit :8443 Compose configurations

Checks

• Harbor strict lint: clean
• lint self-test: 12 Bash rules, 9 Compose rules, Boost, ShellCheck, and orchestrator all passed
• documentation tests: 13 passed
• AutoGPT facts: 6 passed
• poetry check: passed
• seed and Traefik generators: reproducible from committed HEAD

Documented local limitation

Graphiti works with Ollama's 768-dimensional nomic-embed-text, but AutoGPT's global search index is fixed at 1,536 dimensions. The Ollama path therefore leaves fresh global search incomplete unless the configured endpoint/gateway supplies a verified 1,536-dimensional embedding route. Marketplace listing search retains its direct text fallback; the guide calls out the repeated non-fatal indexer warnings and the gateway requirement explicitly.