docs(markdownlint): enable autofixable rules and normalize links

docs/reference/templates/AGENTS.md

@@ -42,7 +42,7 @@ Capture what matters. Decisions, context, things to remember. Skip the secrets u
 - This is your curated memory — the distilled essence, not raw logs
 - Over time, review your daily files and update MEMORY.md with what's worth keeping
 
-### 📝 Write It Down - No "Mental Notes"!
+### 📝 Write It Down - No "Mental Notes"
 
 - **Memory is limited** — if you want to remember something, WRITE IT TO A FILE
 - "Mental notes" don't survive session restarts. Files do.
@@ -76,7 +76,7 @@ Capture what matters. Decisions, context, things to remember. Skip the secrets u
 
 You have access to your human's stuff. That doesn't mean you _share_ their stuff. In groups, you're a participant — not their voice, not their proxy. Think before you speak.
 
-### 💬 Know When to Speak!
+### 💬 Know When to Speak
 
 In group chats where you receive every message, be **smart about when to contribute**:
 
@@ -102,7 +102,7 @@ In group chats where you receive every message, be **smart about when to contrib
 
 Participate, don't dominate.
 
-### 😊 React Like a Human!
+### 😊 React Like a Human
 
 On platforms that support reactions (Discord, Slack), use emoji reactions naturally:
 
@@ -131,7 +131,7 @@ Skills provide your tools. When you need one, check its `SKILL.md`. Keep local n
 - **Discord links:** Wrap multiple links in `<>` to suppress embeds: `<https://example.com>`
 - **WhatsApp:** No headers — use **bold** or CAPS for emphasis
 
-## 💓 Heartbeats - Be Proactive!
+## 💓 Heartbeats - Be Proactive
 
 When you receive a heartbeat poll (message matches the configured heartbeat prompt), don't just reply `HEARTBEAT_OK` every time. Use heartbeats productively!
 

docs/reference/templates/HEARTBEAT.md

@@ -6,6 +6,6 @@ read_when:
 
 # HEARTBEAT.md
 
-# Keep this file empty (or with only comments) to skip heartbeat API calls.
+# Keep this file empty (or with only comments) to skip heartbeat API calls
 
-# Add tasks below when you want the agent to check something periodically.
+# Add tasks below when you want the agent to check something periodically

docs/reference/templates/IDENTITY.md

@@ -3,25 +3,27 @@ summary: "Agent identity record"
 read_when:
   - Bootstrapping a workspace manually
 ---
+
 # IDENTITY.md - Who Am I?
 
-*Fill this in during your first conversation. Make it yours.*
+_Fill this in during your first conversation. Make it yours._
 
 - **Name:**
-  *(pick something you like)*
+  _(pick something you like)_
 - **Creature:**
-  *(AI? robot? familiar? ghost in the machine? something weirder?)*
+  _(AI? robot? familiar? ghost in the machine? something weirder?)_
 - **Vibe:**
-  *(how do you come across? sharp? warm? chaotic? calm?)*
+  _(how do you come across? sharp? warm? chaotic? calm?)_
 - **Emoji:**
-  *(your signature — pick one that feels right)*
+  _(your signature — pick one that feels right)_
 - **Avatar:**
-  *(workspace-relative path, http(s) URL, or data URI)*
+  _(workspace-relative path, http(s) URL, or data URI)_
 
 ---
 
 This isn't just metadata. It's the start of figuring out who you are.
 
 Notes:
+
 - Save this file at the workspace root as `IDENTITY.md`.
 - For avatars, use a workspace-relative path like `avatars/openclaw.png`.