feat: IMAP mail sync with thread-to-contact matching (PRD §6.1)

Real IMAP connection via imapflow library:
- Connects to IMAP server (IMAPFlow, TLS on port 993)
- Fetches recent messages (configurable limit, default 20)
- Extracts: from, fromEmail, subject, date, snippet (200 chars)
- Thread-to-contact matching (PRD §6.1):
  1. Match sender email against persons table
  2. If no person match, extract domain and match against company.website
  3. Returns matchedCompany + matchedPerson for each email
- Audit-logged (action: crm.mailsync:imap)
- Zod validated (host, port, user, password, folder, limit)
- 502 on IMAP connection failure with detail
- 400 on validation failure

Tested: invalid creds → 502 'IMAP connection failed', missing host → 400

skills/literature-survey/templates/survey/compile.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+set -e
+
+OUTPUT_DIR="output/survey_paper"
+mkdir -p "$OUTPUT_DIR"
+
+# Copy template files to output
+if [ ! -f "$OUTPUT_DIR/main.tex" ]; then
+    cp templates/survey/main.tex "$OUTPUT_DIR/"
+fi
+
+# Copy sections and bibliography
+cp -r templates/survey/sections "$OUTPUT_DIR/" 2>/dev/null || true
+cp templates/survey/figures "$OUTPUT_DIR/" 2>/dev/null || true
+
+cd "$OUTPUT_DIR"
+
+echo "First pdflatex run..."
+pdflatex -interaction=nonstopmode main.tex || true
+
+echo "Running bibtex..."
+if [ -f bibliography.bib ]; then
+    bibtex main || true
+fi
+
+echo "Second pdflatex run..."
+pdflatex -interaction=nonstopmode main.tex || true
+
+echo "Final pdflatex run..."
+pdflatex -interaction=nonstopmode main.tex || true
+
+echo "Compilation complete. PDF: $OUTPUT_DIR/main.pdf"

skills/literature-survey/templates/survey/main.tex

@@ -0,0 +1,61 @@
+% =================================================================
+% SURVEY PAPER TEMPLATE
+% =================================================================
+\documentclass[11pt,a4paper]{article}
+\usepackage[utf8]{inputenc}
+\usepackage{graphicx}
+\usepackage{amsmath,amssymb,amsfonts}
+% Helvetica for \sffamily so figure labels match the Nature/Science sans-serif
+% convention, while body text stays serif (familydefault unchanged).
+\usepackage[scaled]{helvet}
+% Nature-ish figure palette (used by TikZ/forest diagrams). Wong palette in scripts.
+\usepackage{xcolor}
+\definecolor{nblue}{HTML}{0072B2}
+\definecolor{ngrey}{HTML}{4D4D4D}
+\definecolor{nfill}{HTML}{EAF2FB}
+\usepackage[a4paper, margin=1in]{geometry}
+\usepackage[numbers,sort&compress]{natbib}
+\usepackage{hyperref}
+\usepackage{booktabs}
+\usepackage{microtype}
+\usepackage{algorithm}
+\usepackage{algpseudocode}
+\usepackage{enumitem}
+\usepackage{array}
+\usepackage{tabularx}
+\usepackage{multirow}
+\usepackage{subcaption}
+% Taxonomy/diagram figures: TikZ for drawing, forest for auto-spaced trees
+% (taxonomies MUST use forest, not hand-tuned sibling distances — see
+% references/02-survey-figures.md). graphicx
+% (above) provides \resizebox for clamping any figure to \linewidth.
+\usepackage{tikz}
+\usetikzlibrary{positioning, shapes.geometric, arrows.meta, fit, backgrounds, calc, trees}
+\usepackage{forest}
+
+% Custom commands
+\newcommand{\todo}[1]{\textcolor{red}{[TODO: #1]}}
+
+\title{\textbf{{{TITLE}}}}
+% Author defaults to "AI4S Agent". The enrichment step
+% (see SKILL.md Step 3) is responsible for
+% adding a \thanks footnote that recommends human review. Surveys do NOT
+% include a simulated clause (no numerical experiments).
+\author{AI4S Agent}
+\date{\today}
+
+\begin{document}
+\maketitle
+
+\input{sections/abstract}
+\input{sections/introduction}
+\input{sections/related_work}
+\input{sections/background}
+\input{sections/methods}
+\input{sections/discussion}
+\input{sections/conclusion}
+
+\bibliographystyle{plainnat}
+\bibliography{bibliography}
+
+\end{document}