docs: fix stale and incorrect documentation across 18 files

Cross-referenced all 84 docs pages against the actual codebase and
corrected every discrepancy found.

Reference docs:
- faq.md: Fix non-existent commands (/stats→/usage, /context→/usage,
  hermes models→hermes model, hermes config get→hermes config show,
  hermes gateway logs→cat gateway.log, async→sync chat() call)
- cli-commands.md: Fix --provider choices list (remove providers not
  in argparse), add undocumented -s/--skills flag
- slash-commands.md: Add missing /queue and /resume commands, fix
  /approve args_hint to show [session|always]
- tools-reference.md: Remove duplicate vision and web toolset sections
- environment-variables.md: Fix HERMES_INFERENCE_PROVIDER list (add
  copilot-acp, remove alibaba to match actual argparse choices)

Configuration & user guide:
- configuration.md: Fix approval_mode→approvals.mode (manual not ask),
  checkpoints.enabled default true not false, human_delay defaults
  (500/2000→800/2500), remove non-existent delegation.max_iterations
  and delegation.default_toolsets, fix website_blocklist nesting
  under security:, add .hermes.md and CLAUDE.md to context files
  table with priority system explanation
- security.md: Fix website_blocklist nesting under security:
- context-files.md: Add .hermes.md/HERMES.md and CLAUDE.md support,
  document priority-based first-match-wins loading behavior
- cli.md: Fix personalities config nesting (top-level, not under agent:)
- delegation.md: Fix model override docs (config-level, not per-call
  tool parameter)
- rl-training.md: Fix log directory (tinker-atropos/logs/→
  ~/.hermes/logs/rl_training/)
- tts.md: Fix Discord delivery format (voice bubble with fallback,
  not just file attachment)
- git-worktrees.md: Remove outdated v0.2.0 version reference

Developer guide:
- prompt-assembly.md: Add .hermes.md, CLAUDE.md, document priority
  system for context files
- agent-loop.md: Fix callback list (remove non-existent
  message_callback, add stream_delta_callback, tool_gen_callback,
  status_callback)

Messaging & guides:
- webhooks.md: Fix command (hermes setup gateway→hermes gateway setup)
- tips.md: Fix session idle timeout (120min→24h), config file
  (gateway.json→config.yaml)
- build-a-hermes-plugin.md: Fix plugin.yaml provides: format
  (provides_tools/provides_hooks as lists), note register_command()
  as not yet implemented

website/docs/guides/build-a-hermes-plugin.md

@@ -29,12 +29,14 @@ Create `plugin.yaml`:
 name: calculator
 version: 1.0.0
 description: Math calculator — evaluate expressions and convert units
-provides:
-  tools: true
-  hooks: true
+provides_tools:
+  - calculate
+  - unit_convert
+provides_hooks:
+  - post_tool_call
 ```
 
-This tells Hermes: "I'm a plugin called calculator, I provide tools and hooks." That's all the manifest needs.
+This tells Hermes: "I'm a plugin called calculator, I provide tools and hooks." The `provides_tools` and `provides_hooks` fields are lists of what the plugin registers.
 
 Optional fields you could add:
 ```yaml
@@ -232,7 +234,7 @@ def register(ctx):
 - Called exactly once at startup
 - `ctx.register_tool()` puts your tool in the registry — the model sees it immediately
 - `ctx.register_hook()` subscribes to lifecycle events
-- `ctx.register_command()` adds a slash command to `/help`, autocomplete, and gateway dispatch
+- `ctx.register_command()` — _planned but not yet implemented_
 - If this function crashes, the plugin is disabled but Hermes continues fine
 
 ## Step 6: Test it

website/docs/guides/tips.md

@@ -170,7 +170,7 @@ Instead of manually collecting user IDs for allowlists, enable DM pairing. When
 Use `/verbose` to control how much tool activity you see. In messaging platforms, less is usually more — keep it on "new" to see just new tool calls. In the CLI, "all" gives you a satisfying live view of everything the agent does.
 
 :::tip
-On messaging platforms, sessions auto-reset after idle time (default: 120 min) or daily at 4 AM. Adjust per-platform in `~/.hermes/gateway.json` if you need longer sessions.
+On messaging platforms, sessions auto-reset after idle time (default: 24 hours) or daily at 4 AM. Adjust per-platform in `~/.hermes/config.yaml` if you need longer sessions.
 :::
 
 ## Security