docs: two-week gap sweep — platforms, CLI, config, TUI, hooks, providers (#17727)

Covers ~60 merged PRs from Apr 15–29 that shipped user-visible behavior
without docs coverage. No functional code changes; docs + static manifest
regeneration only.

Highlights:

Stale / incorrect:
- configuration.md: auxiliary auto-routing line was wrong since #11900;
  now correctly states auto routes to the main model, with a note on the
  cost trade-off and per-task override pattern.
- integrations/providers.md + configuration.md compression intro:
  removed stale 'Gemini Flash via OpenRouter' claim.
- website/static/api/model-catalog.json: rebuilt from hermes_cli/models.py
  so the live manifest picks up tencent/hy3-preview (and remains in sync
  for future model-catalog PRs).

Platform messaging (#17417 #16997 #16193 #14315 #13151 #11794 #10610
#10283 #10246 #11564 #13178):
- Signal: native formatting (bodyRanges), reply quotes, reactions.
- Telegram: table rendering (bullets + code-block fallback),
  disable_link_previews, group_allowed_chats.
- Slack: strict_mention config.
- Discord: slash_commands disable, send_animation GIF, send_message
  native media attachments.
- DingTalk: require_mention + allowed_users.

CLI (#16052 #16539 #16566 #15841 #14798 #10043):
- New 'hermes fallback' interactive manager.
- New 'hermes update --check', '--backup' flag, and pre-update pairing
  snapshot behavior.
- 'hermes gateway start/restart --all' multi-profile flag.
- cron.md: 'hermes tools' as a platform, per-job enabled_toolsets,
  wakeAgent gate, context_from chaining.

Config keys / env vars (#17305 #17026 #17000 #15077 #14557 #14227
#14166 #14730 #17008):
- terminal.docker_run_as_host_user, display.runtime_metadata_footer,
  compression.hygiene_hard_message_limit, HINDSIGHT_TIMEOUT,
  skills.guard_agent_created, TAVILY_BASE_URL,
  security.allow_private_urls, agent.api_max_retries,
  gateway hot-reload of compression/context_length config edits.

TUI / CLI UX (#17130 #17113 #17175 #17150 #16707 #12312 #12305 #12934
#14810 #14045 #17286 #17126):
- HERMES_TUI_RESUME, HERMES_TUI_THEME, LaTeX rendering, busy-indicator
  styles, ctrl-x queued-message delete, git branch in status bar, per-
  prompt elapsed stopwatch, external-editor keybind, markdown stripping,
  TUI voice-mode parity, /agents overlay, /reload + /mouse.

Gateway features (#16506 #15027 #13428 #12116):
- Native multimodal image routing based on vision capability.
- /usage account-limits section.
- /steer slash command (added to reference + explanation in CLI).

Plugins / hooks (#12929 #12972 #10763 #16364):
- transform_tool_result, transform_terminal_output plugin hooks.
- PluginContext.dispatch_tool() documented with slash-command example.
- google_meet bundled plugin entry under built-in-plugins.md.

Other (#16576 #16572 #16383 #15878 #15608 #15606 #14809 #14767 #14231
#14232 #14307 #13683 #12373 #11891 #11291 #10066):
- hermes backup exclusions (WAL/SHM/journal + checkpoints/).
- security.md hardline blocklist (floor below --yolo).
- FHS install layout for root installs.
- openssh-client + docker-cli baked into the Docker image.
- MEDIA: tag supported extensions table (docs/office/archives/pdf).
- Remote-to-host file sync on SSH/Modal/Daytona teardown.
- 'hermes model' -> Configure Auxiliary Models interactive picker.
- Podman support via HERMES_DOCKER_BINARY.

Providers / STT / one-shot (#15045 #14473 #15704):
- alibaba-coding-plan first-class provider entry.
- xAI Grok STT as a 6th transcription option.
- 'hermes -z' scripted one-shot mode + HERMES_INFERENCE_MODEL.

Build: 'docusaurus build' succeeds. No new broken links/anchors;
pre-existing warnings unchanged.

website/docs/reference/slash-commands.md

@@ -33,6 +33,7 @@ Type `/` in the CLI to open the autocomplete menu. Built-in commands are case-in
 | `/snapshot [create\|restore <id>\|prune]` (alias: `/snap`) | Create or restore state snapshots of Hermes config/state. `create [label]` saves a snapshot, `restore <id>` reverts to it, `prune [N]` removes old snapshots, or list all with no args. |
 | `/stop` | Kill all running background processes |
 | `/queue <prompt>` (alias: `/q`) | Queue a prompt for the next turn (doesn't interrupt the current agent response). **Note:** `/q` is claimed by both `/queue` and `/quit`; the last registration wins, so `/q` resolves to `/quit` in practice. Use `/queue` explicitly. |
+| `/steer <prompt>` | Inject a mid-run note that arrives at the agent **after the next tool call** — no interrupt, no new user turn. The text is appended to the last tool result's content once the current tool completes, giving the agent new context without breaking the current tool-calling loop. Use this to nudge direction mid-task (e.g. "focus on the auth module" while the agent is running tests). |
 | `/resume [name]` | Resume a previously-named session |
 | `/status` | Show session info |
 | `/agents` (alias: `/tasks`) | Show active agents and running tasks across the current session. |
@@ -72,7 +73,7 @@ Type `/` in the CLI to open the autocomplete menu. Built-in commands are case-in
 | Command | Description |
 |---------|-------------|
 | `/help` | Show this help message |
-| `/usage` | Show token usage, cost breakdown, and session duration |
+| `/usage` | Show token usage, cost breakdown, session duration, and — when available from the active provider — an **Account limits** section with remaining quota / credits / plan usage pulled live from the provider's API. |
 | `/insights` | Show usage insights and analytics (last 30 days) |
 | `/platforms` (alias: `/gateway`) | Show gateway/messaging platform status |
 | `/paste` | Attach a clipboard image |
@@ -140,7 +141,7 @@ The messaging gateway supports the following built-in commands inside Telegram,
 | `/compress [focus topic]` | Manually compress conversation context. Optional focus topic narrows what the summary preserves. |
 | `/title [name]` | Set or show the session title. |
 | `/resume [name]` | Resume a previously named session. |
-| `/usage` | Show token usage, estimated cost breakdown (input/output), context window state, and session duration. |
+| `/usage` | Show token usage, estimated cost breakdown (input/output), context window state, session duration, and — when available from the active provider — an **Account limits** section with remaining quota / credits pulled live from the provider's API. |
 | `/insights [days]` | Show usage analytics. |
 | `/reasoning [level\|show\|hide]` | Change reasoning effort or toggle reasoning display. |
 | `/voice [on\|off\|tts\|join\|channel\|leave\|status]` | Control spoken replies in chat. `join`/`channel`/`leave` manage Discord voice-channel mode. |
@@ -159,7 +160,7 @@ The messaging gateway supports the following built-in commands inside Telegram,
 
 ## Notes
 
-- `/skin`, `/snapshot`, `/gquota`, `/reload`, `/tools`, `/toolsets`, `/browser`, `/config`, `/cron`, `/skills`, `/platforms`, `/paste`, `/image`, `/terminal-setup`, `/statusbar`, and `/plugins` are **CLI-only** commands.
+- `/skin`, `/snapshot`, `/gquota`, `/reload`, `/tools`, `/toolsets`, `/browser`, `/config`, `/cron`, `/skills`, `/platforms`, `/paste`, `/image`, `/terminal-setup`, `/statusbar`, `/mouse`, `/plugins`, and `/steer` are **CLI-only** (the `/mouse` command is TUI-exclusive; `/steer` works in both classic CLI and TUI).
 - `/verbose` is **CLI-only by default**, but can be enabled for messaging platforms by setting `display.tool_progress_command: true` in `config.yaml`. When enabled, it cycles the `display.tool_progress` mode and saves to config.
 - `/sethome`, `/update`, `/restart`, `/approve`, `/deny`, and `/commands` are **messaging-only** commands.
 - `/status`, `/background`, `/voice`, `/reload-mcp`, `/rollback`, `/debug`, `/fast`, and `/yolo` work in **both** the CLI and the messaging gateway.