docs: replace ampersand headings for stable Mintlify anchors

Per docs/CLAUDE.md, Mintlify anchor generation is brittle for headings
that contain em dashes, apostrophes, and ampersands. Normalize 9 H2
headings across docs/date-time.md, docs/pi.md, docs/platforms/{index,
macos, mac/webchat, mac/peekaboo}.md, docs/nodes/{images,audio}.md, and
docs/reference/AGENTS.default.md from `X & Y` to `X and Y` so anchors
do not collapse on entity decoding. Verified no inbound anchor references
to the renamed sections in the docs tree.

docs/date-time.md

@@ -62,7 +62,7 @@ You can override this behavior:
 [WhatsApp +1555 +30s 2026-01-18T05:19Z] follow-up
 ```
 
-## System prompt: Current Date & Time
+## System prompt: current date and time
 
 If the user timezone is known, the system prompt includes a dedicated
 **Current Date & Time** section with the **time zone only** (no clock/time format)

docs/nodes/audio.md

@@ -144,7 +144,7 @@ Note: Binary detection is best-effort across macOS/Linux/Windows; ensure the CLI
 }
 ```
 
-## Notes & limits
+## Notes and limits
 
 - Provider auth follows the standard model auth order (auth profiles, env vars, `models.providers.*.apiKey`).
 - Groq setup details: [Groq](/providers/groq).

docs/nodes/images.md

@@ -51,7 +51,7 @@ The WhatsApp channel runs via **Baileys Web**. This document captures the curren
   - If the active primary image model already supports vision natively, OpenClaw skips the `[Image]` summary block and passes the original image to the model instead.
 - By default only the first matching image/audio/video attachment is processed; set `tools.media.<cap>.attachments` to process multiple attachments.
 
-## Limits & Errors
+## Limits and errors
 
 **Outbound send caps (WhatsApp web send)**
 

docs/pi.md

@@ -337,7 +337,7 @@ const compactResult = await compactEmbeddedPiSessionDirect({
 });
 ```
 
-## Authentication & Model Resolution
+## Authentication and model resolution
 
 ### Auth profiles
 
@@ -418,7 +418,7 @@ if (cfg?.agents?.defaults?.contextPruning?.mode === "cache-ttl") {
 }
 ```
 
-## Streaming & Block Replies
+## Streaming and block replies
 
 ### Block chunking
 

docs/platforms/index.md

@@ -22,7 +22,7 @@ Native companion apps for Windows are also planned; the Gateway is recommended v
 - Windows: [Windows](/platforms/windows)
 - Linux: [Linux](/platforms/linux)
 
-## VPS & hosting
+## VPS and hosting
 
 - VPS hub: [VPS hosting](/vps)
 - Fly.io: [Fly.io](/install/fly)

docs/platforms/mac/peekaboo.md

@@ -65,7 +65,7 @@ socket path is in use. You can override with:
 export PEEKABOO_BRIDGE_SOCKET=/path/to/bridge.sock
 ```
 
-## Security & permissions
+## Security and permissions
 
 - The bridge validates **caller code signatures**; an allowlist of TeamIDs is
   enforced (Peekaboo host TeamID + OpenClaw app TeamID).

docs/platforms/mac/webchat.md

@@ -13,7 +13,7 @@ agent (with a session switcher for other sessions).
 - **Remote mode**: forwards the Gateway control port over SSH and uses that
   tunnel as the data plane.
 
-## Launch & debugging
+## Launch and debugging
 
 - Manual: Lobster menu → “Open Chat”.
 - Auto‑open for testing:

docs/platforms/macos.md

@@ -162,7 +162,7 @@ If `openclaw doctor` detects state under:
 
 it will warn and recommend moving back to a local path.
 
-## Build & dev workflow (native)
+## Build and dev workflow (native)
 
 - `cd apps/macos && swift build`
 - `swift run OpenClaw` (or Xcode)

docs/reference/AGENTS.default.md

@@ -72,7 +72,7 @@ cp docs/reference/AGENTS.default.md ~/.openclaw/workspace/AGENTS.md
 - Capture: decisions, preferences, constraints, open loops.
 - Avoid secrets unless explicitly requested.
 
-## Tools & skills
+## Tools and skills
 
 - Tools live in skills; follow each skill’s `SKILL.md` when you need it.
 - Keep environment-specific notes in `TOOLS.md` (Notes for Skills).