docs: comprehensive update for recent merged PRs (#9019)

Audit and update documentation across 12 files to match changes from
~50 recently merged PRs. Key updates:

Slash commands (slash-commands.md):
- Add 5 missing commands: /snapshot, /fast, /image, /debug, /restart
- Fix /status incorrectly labeled as messaging-only (available in both)
- Add --global flag to /model docs
- Add [focus topic] arg to /compress docs

CLI commands (cli-commands.md):
- Add hermes debug share section with options and examples
- Add hermes backup section with --quick and --label flags
- Add hermes import section

Feature docs:
- TTS: document global tts.speed and per-provider speed for Edge/OpenAI
- Web dashboard: add docs for 5 missing pages (Sessions, Logs,
  Analytics, Cron, Skills) and 15+ API endpoints
- WhatsApp: add streaming, 4K chunking, and markdown formatting docs
- Skills: add GitHub rate-limit/GITHUB_TOKEN troubleshooting tip
- Budget: document CLI notification on iteration budget exhaustion

Config migration (compression.summary_* → auxiliary.compression.*):
- Update configuration.md, environment-variables.md,
  fallback-providers.md, cli.md, and context-compression-and-caching.md
- Replace legacy compression.summary_model/provider/base_url references
  with auxiliary.compression.model/provider/base_url
- Add legacy migration info boxes explaining auto-migration

Minor fixes:
- wecom-callback.md: clarify 'text only' limitation (input only)
- Escape {session_id}/{job_id} in web-dashboard.md headings for MDX

website/docs/user-guide/configuration.md

@@ -441,11 +441,19 @@ compression:
   threshold: 0.50                                   # Compress at this % of context limit
   target_ratio: 0.20                                # Fraction of threshold to preserve as recent tail
   protect_last_n: 20                                # Min recent messages to keep uncompressed
-  summary_model: "google/gemini-3-flash-preview"    # Model for summarization
-  summary_provider: "auto"                          # Provider: "auto", "openrouter", "nous", "codex", "main", etc.
-  summary_base_url: null                            # Custom OpenAI-compatible endpoint (overrides provider)
+
+# The summarization model/provider is configured under auxiliary:
+auxiliary:
+  compression:
+    model: "google/gemini-3-flash-preview"          # Model for summarization
+    provider: "auto"                                # Provider: "auto", "openrouter", "nous", "codex", "main", etc.
+    base_url: null                                  # Custom OpenAI-compatible endpoint (overrides provider)
 ```
 
+:::info Legacy config migration
+Older configs with `compression.summary_model`, `compression.summary_provider`, and `compression.summary_base_url` are automatically migrated to `auxiliary.compression.*` on first load (config version 17). No manual action needed.
+:::
+
 ### Common setups
 
 **Default (auto-detect) — no configuration needed:**
@@ -458,30 +466,32 @@ Uses the first available provider (OpenRouter → Nous → Codex) with Gemini Fl
 
 **Force a specific provider** (OAuth or API-key based):
 ```yaml
-compression:
-  summary_provider: nous
-  summary_model: gemini-3-flash
+auxiliary:
+  compression:
+    provider: nous
+    model: gemini-3-flash
 ```
 Works with any provider: `nous`, `openrouter`, `codex`, `anthropic`, `main`, etc.
 
 **Custom endpoint** (self-hosted, Ollama, zai, DeepSeek, etc.):
 ```yaml
-compression:
-  summary_model: glm-4.7
-  summary_base_url: https://api.z.ai/api/coding/paas/v4
+auxiliary:
+  compression:
+    model: glm-4.7
+    base_url: https://api.z.ai/api/coding/paas/v4
 ```
 Points at a custom OpenAI-compatible endpoint. Uses `OPENAI_API_KEY` for auth.
 
 ### How the three knobs interact
 
-| `summary_provider` | `summary_base_url` | Result |
+| `auxiliary.compression.provider` | `auxiliary.compression.base_url` | Result |
 |---------------------|---------------------|--------|
 | `auto` (default) | not set | Auto-detect best available provider |
 | `nous` / `openrouter` / etc. | not set | Force that provider, use its auth |
 | any | set | Use the custom endpoint directly (provider ignored) |
 
 :::warning Summary model context length requirement
-The `summary_model` **must** have a context window at least as large as your main agent model's. The compressor sends the full middle section of the conversation to the summary model — if that model's context window is smaller than the main model's, the summarization call will fail with a context length error. When this happens, the middle turns are **dropped without a summary**, losing conversation context silently. If you override `summary_model`, verify its context length meets or exceeds your main model's.
+The summary model **must** have a context window at least as large as your main agent model's. The compressor sends the full middle section of the conversation to the summary model — if that model's context window is smaller than the main model's, the summarization call will fail with a context length error. When this happens, the middle turns are **dropped without a summary**, losing conversation context silently. If you override the model, verify its context length meets or exceeds your main model's.
 :::
 
 ## Context Engine
@@ -522,6 +532,8 @@ agent:
 
 Budget pressure is enabled by default. The agent sees warnings naturally as part of tool results, encouraging it to consolidate its work and deliver a response before running out of iterations.
 
+When the iteration budget is fully exhausted, the CLI shows a notification to the user: `⚠ Iteration budget reached (90/90) — response may be incomplete`. If the budget runs out during active work, the agent generates a summary of what was accomplished before stopping.
+
 ### Streaming Timeouts
 
 The LLM streaming connection has two timeout layers. Both auto-adjust for local providers (localhost, LAN IPs) — no configuration needed for most setups.
@@ -666,7 +678,7 @@ Each auxiliary task has a configurable `timeout` (in seconds). Defaults: vision
 :::
 
 :::info
-Context compression has its own top-level `compression:` block with `summary_provider`, `summary_model`, and `summary_base_url` — see [Context Compression](#context-compression) above. The fallback model uses a `fallback_model:` block — see [Fallback Model](/docs/integrations/providers#fallback-model). All three follow the same provider/model/base_url pattern.
+Context compression has its own `compression:` block for thresholds and an `auxiliary.compression:` block for model/provider settings — see [Context Compression](#context-compression) above. The fallback model uses a `fallback_model:` block — see [Fallback Model](/docs/integrations/providers#fallback-model). All three follow the same provider/model/base_url pattern.
 :::
 
 ### Changing the Vision Model
@@ -839,16 +851,21 @@ agent:
 
 ```yaml
 tts:
-  provider: "edge"              # "edge" | "elevenlabs" | "openai" | "neutts"
+  provider: "edge"              # "edge" | "elevenlabs" | "openai" | "neutts" | "minimax"
+  speed: 1.0                    # Global speed multiplier (fallback for all providers)
   edge:
     voice: "en-US-AriaNeural"   # 322 voices, 74 languages
+    speed: 1.0                  # Speed multiplier (converted to rate percentage, e.g. 1.5 → +50%)
   elevenlabs:
     voice_id: "pNInz6obpgDQGcFmaJgB"
     model_id: "eleven_multilingual_v2"
   openai:
     model: "gpt-4o-mini-tts"
     voice: "alloy"              # alloy, echo, fable, onyx, nova, shimmer
+    speed: 1.0                  # Speed multiplier (clamped to 0.25–4.0 by the API)
     base_url: "https://api.openai.com/v1"  # Override for OpenAI-compatible TTS endpoints
+  minimax:
+    speed: 1.0                  # Speech speed multiplier
   neutts:
     ref_audio: ''
     ref_text: ''
@@ -858,6 +875,8 @@ tts:
 
 This controls both the `text_to_speech` tool and spoken replies in voice mode (`/voice tts` in the CLI or messaging gateway).
 
+**Speed fallback hierarchy:** provider-specific speed (e.g. `tts.edge.speed`) → global `tts.speed` → `1.0` default. Set the global `tts.speed` to apply a uniform speed across all providers, or override per-provider for fine-grained control.
+
 ## Display Settings
 
 ```yaml