docs: ignore box diagrams in ascii guard

Wrap existing box-drawing diagrams with ascii-guard markers so docs-site checks pass when website docs are touched.

Co-authored-by: Cursor <cursoragent@cursor.com>

website/docs/guides/cron-script-only.md

@@ -10,6 +10,7 @@ Sometimes you already know exactly what message you want to send. You don't need
 
 Hermes calls this **no-agent mode**. It's the cron system minus the LLM.
 
+<!-- ascii-guard-ignore -->
 ```
    ┌──────────────────┐          ┌──────────────────┐
    │ scheduler tick   │  every   │ run script       │
@@ -23,6 +24,7 @@ Hermes calls this **no-agent mode**. It's the cron system minus the LLM.
                                  │ (telegram/disc…) │
                                  └──────────────────┘
 ```
+<!-- ascii-guard-ignore-end -->
 
 - **No LLM call.** Zero tokens, zero agent loop, zero model spend.
 - **Script is the job.** The script decides whether to alert. Emit output → message gets sent. Emit nothing → silent tick.

website/docs/user-guide/features/kanban.md

@@ -494,6 +494,7 @@ And the two auxiliary LLM slots:
 
 The GUI is strictly a **read-through-the-DB + write-through-kanban_db** layer with no domain logic of its own:
 
+<!-- ascii-guard-ignore -->
 ```
 ┌────────────────────────┐      WebSocket (tails task_events)
 │   React SPA (plugin)   │ ◀──────────────────────────────────┐
@@ -513,6 +514,7 @@ The GUI is strictly a **read-through-the-DB + write-through-kanban_db** layer wi
 │  (WAL, shared)         │
 └────────────────────────┘
 ```
+<!-- ascii-guard-ignore-end -->
 
 ### REST surface