fix(portable): Gemini keys, Telegram pairing UI, and config durability

Improve first-run and channel setup for non-technical users: detect newer
Gemini key formats, pin Node 22.22.3, add Control Panel Telegram approve
flow, and keep channels/models when config is rewritten. Persist uclaw
wizard state via uclaw-meta.json so restarts skip language/persona prompts.

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

portable/skills/en/pdf-toolkit/SKILL.md

@@ -0,0 +1,65 @@
+---
+name: pdf-toolkit
+description: "PDF toolkit - merge, split, extract text, convert to images. Runs locally."
+metadata: { "openclaw": { "emoji": "📄" } }
+---
+
+# PDF Toolkit
+
+Common operations on local PDF files: merge, split, extract text, convert. Prefers
+tools already on the system, otherwise uses Python's `pypdf` (lightweight, pure
+Python, installed on first use with `pip install pypdf`).
+
+Everything runs on this machine. Nothing is uploaded.
+
+## What it does
+
+- **Merge**: combine several PDFs into one
+- **Split**: break into pages, or pull out a page range
+- **Extract text**: export contents as plain text for summarising or searching
+- **Inspect**: page count and document metadata
+
+## How to run it
+
+Use the Bash tool. These examples use `pypdf` — cross-platform, no Office or
+Acrobat needed.
+
+```bash
+# Ensure the dependency (first run only)
+python -c "import pypdf" 2>/dev/null || pip install -q pypdf
+
+# Merge a.pdf and b.pdf into merged.pdf
+python - <<'PY'
+from pypdf import PdfWriter
+w = PdfWriter()
+for f in ["a.pdf", "b.pdf"]:
+    w.append(f)
+w.write("merged.pdf"); w.close()
+print("merged -> merged.pdf")
+PY
+
+# Extract all text
+python - <<'PY'
+from pypdf import PdfReader
+r = PdfReader("input.pdf")
+print("\n".join((p.extract_text() or "") for p in r.pages))
+PY
+
+# Pull out pages 1-3 into sub.pdf
+python - <<'PY'
+from pypdf import PdfReader, PdfWriter
+r = PdfReader("input.pdf"); w = PdfWriter()
+for i in range(0, 3):
+    w.add_page(r.pages[i])
+w.write("sub.pdf"); w.close()
+print("extracted pages 1-3 -> sub.pdf")
+PY
+```
+
+## Working notes
+
+- Check the file exists first with `ls`, and get the page count with
+  `python -c "from pypdf import PdfReader; print(len(PdfReader('x.pdf').pages))"`
+- Scanned PDFs are images — text extraction returning nothing is expected.
+  Tell the user it needs OCR rather than reporting an empty result as success.
+- Write output next to the source file, and tell the user the filename you created.