Bitácora 8–30 jun: contrato firmado, plan de actividades y skill proposal-pdf

- Comunicaciones (REGISTRO #15–#21): respuesta v1.1 (10-jun), luz verde (16-jun),
  contrato (envío 25-jun, ajustes + firma 26-jun), arranque con Erika y kickoff 1-jul
- Evidencia en fuentes/ (correos 8/10/16-jun, WhatsApp Paola y Erika)
- Contratos (sin firmar y firmado) en propuesta/
- Plan de actividades Etapa 0–3 + guion del kickoff (planeacion/)
- Skill proposal-pdf instalado (.claude/skills) + Propuesta-Balam.pdf regenerada
- README/PENDIENTES al día; limpieza de archivos sueltos; .gitignore (locks de Office)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.claude/skills/proposal-pdf/scripts/render_check.py

@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+"""render_check.py — rasterize PDF pages to PNG for visual verification.
+
+Cross-platform: uses pypdfium2 (already pulled in with pdfplumber), so it needs
+no poppler/pdftoppm. On Windows this is the practical way to do the "ALWAYS
+verify visually" step from SKILL.md.
+
+Usage:
+    python render_check.py Output.pdf                # every page -> Output_p1.png, ...
+    python render_check.py Output.pdf 1 2 5          # only pages 1, 2, 5 (1-based)
+    python render_check.py Output.pdf 1 2 --scale 2  # higher resolution
+"""
+import sys, pathlib
+
+try:
+    import pypdfium2 as pdfium
+except Exception:
+    sys.exit("Missing pypdfium2 (it installs alongside pdfplumber).\n"
+             "    pip install pypdfium2")
+
+
+def main():
+    args = list(sys.argv[1:])
+    if not args:
+        sys.exit("Usage: python render_check.py <pdf> [pages...] [--scale N]")
+
+    scale = 1.5
+    if "--scale" in args:
+        i = args.index("--scale")
+        try:
+            scale = float(args[i + 1])
+        except (IndexError, ValueError):
+            sys.exit("--scale needs a number, e.g. --scale 2")
+        del args[i:i + 2]
+
+    pdf_path = args[0]
+    if not pathlib.Path(pdf_path).exists():
+        sys.exit(f"PDF not found: {pdf_path}")
+    pages = [int(a) for a in args[1:]]
+
+    pdf = pdfium.PdfDocument(pdf_path)
+    n = len(pdf)
+    idxs = [p - 1 for p in pages] if pages else range(n)
+    stem = pathlib.Path(pdf_path).with_suffix("")
+    for i in idxs:
+        if i < 0 or i >= n:
+            print(f"  ! page {i + 1} out of range (1..{n})")
+            continue
+        out = f"{stem}_p{i + 1}.png"
+        pdf[i].render(scale=scale).to_pil().save(out)
+        print("wrote", out)
+
+
+if __name__ == "__main__":
+    main()