docs: comprehensive accuracy audit fixes (35+ corrections)

CRITICAL fixes:
- Installation: Remove false prerequisites (installer auto-installs everything except git)
- Tools: Remove non-existent 'web_crawl' tool from tools table
- Memory: Remove non-existent 'read' action (only add/replace/remove exist)
- Code execution: Fix 'search' to 'search_files' in sandbox tools list
- CLI commands: Fix --model/--provider/--toolsets/--verbose as chat subcommand flags

IMPORTANT fixes:
- Installation: Add missing installer features (Node.js, ripgrep, ffmpeg, skills seeding)
- Installation: Add 6 missing package extras to table (mcp, honcho, tts-premium, etc)
- Installation: Fix mkdir to include all directories the installer creates
- Quickstart: Add OpenAI Codex to provider table
- CLI: Fix all 'hermes --flag' to 'hermes chat --flag' across all docs
- Configuration: Remove non-existent --max-turns CLI flag
- Tools: Fix 'search' to 'search_files', add missing 'process' tool
- Skills: Remove skills_categories() (not a registered tool)
- Cron: Remove unsupported 'daily at 9am' schedule format
- TTS: Fix output directory to ~/.hermes/audio_cache/
- Delegation: Clarify depth limit wording
- Architecture: Fix default model, chat() signature, file names
- Contributing: Fix Python requirement from 3.11+ to 3.10+
- CLI reference: Add missing commands (login, tools, sessions subcommands)
- Env vars: Fix TERMINAL_DOCKER_IMAGE default, add HERMES_MODEL

website/docs/reference/environment-variables.md

@@ -15,6 +15,7 @@ All variables go in `~/.hermes/.env`. You can also set them with `hermes config
 | `OPENROUTER_API_KEY` | OpenRouter API key (recommended for flexibility) |
 | `OPENAI_API_KEY` | API key for custom OpenAI-compatible endpoints (used with `OPENAI_BASE_URL`) |
 | `OPENAI_BASE_URL` | Base URL for custom endpoint (VLLM, SGLang, etc.) |
+| `HERMES_MODEL` | Preferred model name (checked before `LLM_MODEL`, used by gateway) |
 | `LLM_MODEL` | Default model name (fallback when not set in config.yaml) |
 | `VOICE_TOOLS_OPENAI_KEY` | OpenAI key for TTS and voice transcription (separate from custom endpoint) |
 | `HERMES_HOME` | Override Hermes config directory (default: `~/.hermes`) |
@@ -47,9 +48,12 @@ All variables go in `~/.hermes/.env`. You can also set them with `hermes config
 | Variable | Description |
 |----------|-------------|
 | `TERMINAL_ENV` | Backend: `local`, `docker`, `ssh`, `singularity`, `modal` |
-| `TERMINAL_DOCKER_IMAGE` | Docker image (default: `python:3.11-slim`) |
+| `TERMINAL_DOCKER_IMAGE` | Docker image (default: `python:3.11`) |
+| `TERMINAL_DOCKER_VOLUMES` | Additional Docker volume mounts (comma-separated `host:container` pairs) |
 | `TERMINAL_SINGULARITY_IMAGE` | Singularity image or `.sif` path |
+| `TERMINAL_MODAL_IMAGE` | Modal container image |
 | `TERMINAL_TIMEOUT` | Command timeout in seconds |
+| `TERMINAL_LIFETIME_SECONDS` | Max lifetime for terminal sessions in seconds |
 | `TERMINAL_CWD` | Working directory for all terminal sessions |
 | `SUDO_PASSWORD` | Enable sudo without interactive prompt |