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/user-guide/features/delegation.md

@@ -173,6 +173,32 @@ delegate_task(
 )
 ```
 
+## Child Timeout
+
+Subagents are killed as stuck if they go quiet for more than `delegation.child_timeout_seconds` wall-clock seconds. The default is **600** (10 minutes) — bumped up from 300s in earlier releases because high-reasoning models on non-trivial research tasks were getting killed mid-think. Tune it per-install:
+
+```yaml
+delegation:
+  child_timeout_seconds: 600   # default
+```
+
+Lower it for fast local models; raise it for slow reasoning models on hard problems. The timer resets every time the child makes an API call or tool call — only genuinely idle workers trigger the kill.
+
+:::tip Diagnostic dump on zero-call timeout
+If a subagent times out having made **zero** API calls (usually: provider unreachable, auth failure, or tool-schema rejection), `delegate_task` writes a structured diagnostic to `~/.hermes/logs/subagent-timeout-<session>-<timestamp>.log` containing the subagent's config snapshot, credential-resolution trace, and any early error messages. Much easier to root-cause than the previous silent-timeout behavior.
+:::
+
+## Monitoring Running Subagents (`/agents`)
+
+The TUI ships a `/agents` overlay (alias `/tasks`) that turns recursive `delegate_task` fan-out into a first-class audit surface:
+
+- Live tree view of running and recently-finished subagents, grouped by parent
+- Per-branch cost, token, and file-touched rollups
+- Kill and pause controls — cancel a specific subagent mid-flight without interrupting its siblings
+- Post-hoc review: step through each subagent's turn-by-turn history even after they've returned to the parent
+
+The classic CLI just prints `/agents` as a text summary; the TUI is where the overlay shines. See [TUI — Slash commands](/docs/user-guide/tui#slash-commands).
+
 ## Depth Limit and Nested Orchestration
 
 By default, delegation is **flat**: a parent (depth 0) spawns children (depth 1), and those children cannot delegate further. This prevents runaway recursive delegation.