docs: fix 40+ discrepancies between documentation and codebase (#5818)

Comprehensive audit of all ~100 doc pages against the actual code, fixing:

Reference docs:
- HERMES_API_TIMEOUT default 900 -> 1800 (env-vars)
- TERMINAL_DOCKER_IMAGE default python:3.11 -> nikolaik/python-nodejs (env-vars)
- compression.summary_model default shown as gemini -> actually empty string (env-vars)
- Add missing GOOGLE_API_KEY, GEMINI_API_KEY, GEMINI_BASE_URL env vars (env-vars)
- Add missing /branch (/fork) slash command (slash-commands)
- Fix hermes-cli tool count 39 -> 38 (toolsets-reference)
- Fix hermes-api-server drop list to include text_to_speech (toolsets-reference)
- Fix total tool count 47 -> 48, standalone 14 -> 15 (tools-reference)

User guide:
- web_extract.timeout default 30 -> 360 (configuration)
- Remove display.theme_mode (not implemented in code) (configuration)
- Remove display.background_process_notifications (not in defaults) (configuration)
- Browser inactivity timeout 300/5min -> 120/2min (browser)
- Screenshot path browser_screenshots -> cache/screenshots (browser)
- batch_runner default model claude-sonnet-4-20250514 -> claude-sonnet-4.6
- Add minimax to TTS provider list (voice-mode)
- Remove credential_pool_strategies from auth.json example (credential-pools)
- Fix Slack token path platforms/slack/ -> root ~/.hermes/ (slack)
- Fix Matrix store path for new installs (matrix)
- Fix WhatsApp session path for new installs (whatsapp)
- Fix HomeAssistant config from gateway.json to config.yaml (homeassistant)
- Fix WeCom gateway start command (wecom)

Developer guide:
- Fix tool/toolset counts in architecture overview
- Update line counts: main.py ~5500, setup.py ~3100, run.py ~7500, mcp_tool ~2200
- Replace nonexistent agent/memory_store.py with memory_manager.py + memory_provider.py
- Update _discover_tools() list: remove honcho_tools, add skill_manager_tool
- Add session_search and delegate_task to intercepted tools list (agent-loop)
- Fix budget warning: two-tier system (70% caution, 90% warning) (agent-loop)
- Fix gateway auth order (per-platform first, global last) (gateway-internals)
- Fix email_adapter.py -> email.py, add webhook.py + api_server.py (gateway-internals)
- Add 7 missing providers to provider-runtime list

Other:
- Add Docker --cap-add entries to security doc
- Fix Python version 3.10+ -> 3.11+ (contributing)
- Fix AGENTS.md discovery claim (not hierarchical walk) (tips)
- Fix cron 'add' -> canonical 'create' (cron-internals)
- Add pre_api_request/post_api_request hooks to plugin guide
- Add Google/Gemini provider to providers page
- Clarify OPENAI_BASE_URL deprecation (providers)

website/docs/developer-guide/architecture.md

@@ -32,8 +32,8 @@ This page is the top-level map of Hermes Agent internals. Use it to orient yours
 │  ┌──────┴───────┐ ┌──────┴───────┐ ┌──────┴───────┐                │
 │  │ Compression  │ │ 3 API Modes  │ │ Tool Registry│                │
 │  │ & Caching    │ │ chat_compl.  │ │ (registry.py)│                │
-│  │              │ │ codex_resp.  │ │ 47 tools     │                │
-│  │              │ │ anthropic    │ │ 37 toolsets   │                │
+│  │              │ │ codex_resp.  │ │ 48 tools     │                │
+│  │              │ │ anthropic    │ │ 40 toolsets   │                │
 │  └──────────────┘ └──────────────┘ └──────────────┘                │
 └─────────────────────────────────────────────────────────────────────┘
            │                                    │
@@ -70,18 +70,19 @@ hermes-agent/
 │   ├── anthropic_adapter.py  # Anthropic Messages API format conversion
 │   ├── display.py            # KawaiiSpinner, tool preview formatting
 │   ├── skill_commands.py     # Skill slash commands
-│   ├── memory_store.py       # Persistent memory read/write
+│   ├── memory_manager.py    # Memory manager orchestration
+│   ├── memory_provider.py   # Memory provider ABC
 │   └── trajectory.py         # Trajectory saving helpers
 │
 ├── hermes_cli/               # CLI subcommands and setup
-│   ├── main.py               # Entry point — all `hermes` subcommands (~4,200 lines)
+│   ├── main.py               # Entry point — all `hermes` subcommands (~5,500 lines)
 │   ├── config.py             # DEFAULT_CONFIG, OPTIONAL_ENV_VARS, migration
 │   ├── commands.py           # COMMAND_REGISTRY — central slash command definitions
 │   ├── auth.py               # PROVIDER_REGISTRY, credential resolution
 │   ├── runtime_provider.py   # Provider → api_mode + credentials
 │   ├── models.py             # Model catalog, provider model lists
 │   ├── model_switch.py       # /model command logic (CLI + gateway shared)
-│   ├── setup.py              # Interactive setup wizard (~3,500 lines)
+│   ├── setup.py              # Interactive setup wizard (~3,100 lines)
 │   ├── skin_engine.py        # CLI theming engine
 │   ├── skills_config.py      # hermes skills — enable/disable per platform
 │   ├── skills_hub.py         # /skills slash command
@@ -100,14 +101,14 @@ hermes-agent/
 │   ├── browser_tool.py       # 11 browser automation tools
 │   ├── code_execution_tool.py # execute_code sandbox
 │   ├── delegate_tool.py      # Subagent delegation
-│   ├── mcp_tool.py           # MCP client (~1,050 lines)
+│   ├── mcp_tool.py           # MCP client (~2,200 lines)
 │   ├── credential_files.py   # File-based credential passthrough
 │   ├── env_passthrough.py    # Env var passthrough for sandboxes
 │   ├── ansi_strip.py         # ANSI escape stripping
 │   └── environments/         # Terminal backends (local, docker, ssh, modal, daytona, singularity)
 │
 ├── gateway/                  # Messaging platform gateway
-│   ├── run.py                # GatewayRunner — message dispatch (~5,800 lines)
+│   ├── run.py                # GatewayRunner — message dispatch (~7,500 lines)
 │   ├── session.py            # SessionStore — conversation persistence
 │   ├── delivery.py           # Outbound message delivery
 │   ├── pairing.py            # DM pairing authorization