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/user-guide/features/cron.md

@@ -65,8 +65,9 @@ The agent knows your connected platforms and home channels — it'll choose sens
 ## Schedule Formats
 
 - **Relative:** `30m`, `2h`, `1d`
-- **Human-readable:** `"every 2 hours"`, `"daily at 9am"`
+- **Interval:** `"every 30m"`, `"every 2h"`
 - **Cron expressions:** `"0 9 * * *"` (standard 5-field cron syntax)
+- **ISO timestamps:** `"2026-03-15T09:00:00"` (one-time scheduled execution)
 
 ## Managing Jobs