docs: fix documentation inconsistencies across reference and user guides

- toolsets-reference: add browser_console to browser + all platform toolsets,
  add missing hermes-acp, hermes-sms, messaging toolsets, correct hermes-gateway
  as composite, deduplicate platform toolset listings
- tools-reference: add missing vision and web toolset sections
- slash-commands: fix /new+/reset as alias (not separate commands), add /stop to
  CLI section (available in both CLI and gateway), add /plugins command, fix Notes
  section about messaging-only vs CLI-only
- environment-variables: fix HERMES_MAX_ITERATIONS default (90 not 60), add
  DEEPSEEK_API_KEY/BASE_URL, OPENCODE_ZEN/GO keys, TAVILY_API_KEY,
  GITHUB_TOKEN, HERMES_EPHEMERAL_SYSTEM_PROMPT
- configuration: remove duplicate Alibaba Cloud row, add OpenCode Zen/Go providers
- cli-commands: add missing providers to --provider list (opencode-zen,
  opencode-go, ai-gateway, kilocode, alibaba)
- quickstart: add OpenCode Zen and OpenCode Go to provider table

Co-authored-by: Test <test@test.com>

website/docs/reference/cli-commands.md

@@ -66,7 +66,7 @@ Common options:
 | `-q`, `--query "..."` | One-shot, non-interactive prompt. |
 | `-m`, `--model <model>` | Override the model for this run. |
 | `-t`, `--toolsets <csv>` | Enable a comma-separated set of toolsets. |
-| `--provider <provider>` | Force a provider: `auto`, `openrouter`, `nous`, `openai-codex`, `copilot`, `copilot-acp`, `anthropic`, `zai`, `kimi-coding`, `minimax`, `minimax-cn`. |
+| `--provider <provider>` | Force a provider: `auto`, `openrouter`, `nous`, `openai-codex`, `copilot`, `copilot-acp`, `anthropic`, `zai`, `kimi-coding`, `minimax`, `minimax-cn`, `opencode-zen`, `opencode-go`, `ai-gateway`, `kilocode`, `alibaba`. |
 | `-v`, `--verbose` | Verbose output. |
 | `-Q`, `--quiet` | Programmatic mode: suppress banner/spinner/tool previews. |
 | `--resume <session>` / `--continue [name]` | Resume a session directly from `chat`. |