V3.8.6 — Docker Hermes v0.18 compatibility

See also: docs/release-notes-v3.8.6.md

Fixed

• Fixed issue #70 Docker/source-stripped installs where Hermes has gateway/run.py but no top-level VERSION file and no local .git tag metadata. doctor --explain, install, and setup now fall back to verified Gateway code anchors instead of failing with Hermes VERSION missing, unknown, or invalid.
• When the fallback is used, diagnostics now report version_source: gateway anchors, version: unknown, and the inferred hook_strategy (gateway_run_013_plus for modern Hermes anchors, legacy_gateway_run for legacy anchors).
• Added Hermes v0.18.0 / v2026.7.1 compatibility coverage; it stays on gateway_run_013_plus.

Changed

• Docker examples now default to HFC_VERSION=v3.8.6.
• README showcase image now uses the combined horizontal real-UI card collage for command cards, command result feedback, and the answer/tool timeline.

Tests

• Added regression coverage for missing-VERSION Hermes roots with legacy and modern Gateway anchors, explicit invalid VERSION rejection, and parent-git-tag isolation while still accepting verified anchors.