fix(nodes): copy URL buttons produce malformed origin#frag URLs (#1753) (#1755)

## Problem

The **Copy URL** and **Copy short URL** buttons on the node detail page
produced URLs like:

```
https://analyzer.00id.net#/nodes/abcdef…
```

The `/` between the authority and the fragment is missing. RFC 3986
allows that form, but several mobile browsers (and some link-detection
heuristics) reject or mis-parse it.

## Fix

Three sites in `public/nodes.js` concatenated `location.origin` with a
literal that started with `'#/'`. Prepend `/`:

- `public/nodes.js:772` — full Copy URL (full pubkey)
- `public/nodes.js:783` — Copy short URL (8-char prefix)
- `public/nodes.js:1580` — side-pane Copy URL

All three now build `https://analyzer.00id.net/#/nodes/…`, which every
browser accepts.

## Tests

`test-issue-1753-copy-url-slash.js` — extracts every `location.origin +
'<literal>'` site from `public/nodes.js` and asserts the literal starts
with `/`. Wired into `.github/workflows/deploy.yml`.

- **Red commit** `b4df2786` — test added; CI fails on assertion (3 of 4
cases) because the literals still start with `'#/'`.
- **Green commit** `2c59f7c0` — three literals fixed to `'/#/nodes/'`;
test passes (4/4).

## Verification

```
$ node test-issue-1753-copy-url-slash.js
issue-1753 copy-URL slash regression
  ✅ found at least 3 location.origin + literal sites in public/nodes.js
  ✅ public/nodes.js:772 literal starts with "/#/" (got "/#/nodes/")
  ✅ public/nodes.js:783 literal starts with "/#/" (got "/#/nodes/")
  ✅ public/nodes.js:1580 literal starts with "/#/" (got "/#/nodes/")
  4 passed, 0 failed
```

`bash ~/.openclaw/skills/pr-preflight/scripts/run-all.sh origin/master`
→ clean (all gates + warnings green).

Fixes #1753

---------

Co-authored-by: openclaw-bot <bot@openclaw.dev>

.github/workflows/deploy.yml

@@ -147,6 +147,7 @@ jobs:
           node test-preflight-xss-gate.js
           node test-traces.js
           node test-issue-1648-m4-emoji-scan.js
+          node test-issue-1753-copy-url-slash.js
           node test-issue-1668-m3-typography.js
           node test-mqtt-status-panel.js
           node test-issue-1697-mqtt-mobile-e2e.js