chore: restructure llm plugin to be more coherent & fix various bugs in llm ui

Plugins/ZShell/Llm/prompts.cpp

@@ -0,0 +1,68 @@
+#include "prompts.hpp"
+
+namespace ZShell::llm::prompts {
+
+QString sandboxPreamble(const QString& workspace, const QStringList& files) {
+	return QStringLiteral(
+			   "The user attached the following files to this "
+			   "conversation. They are available in your sandbox "
+			   "directory at %1:\n%2\nruncommand executes shell "
+			   "commands inside a bubblewrap sandbox: the rest of the "
+			   "filesystem is read-only, there is no network access, "
+			   "and only the sandbox directory is writable. Use it to "
+			   "inspect, transform, or extract attached files (for "
+			   "example to extract archives or search across many "
+			   "files). Files you create stay inside the sandbox "
+			   "directory. Use the webfetch tool for anything that "
+			   "needs the network.")
+		.arg(workspace, files.join(QStringLiteral("\n")));
+}
+
+QString titleSystemPrompt() {
+	return QStringLiteral(
+		"Write a short, concise title for a chat conversation starting "
+		"with the user's message below. At most six words, no quotation "
+		"marks, no trailing punctuation. Reply with the title only.");
+}
+
+QString iconSystemPrompt() {
+	return QStringLiteral(
+			   "Pick the single icon name from this list that best matches the "
+			   "topic of the user's message below: %1. Reply with only the "
+			   "icon "
+			   "name, exactly as written in the list, and nothing else.")
+		.arg(iconNames().join(QStringLiteral(", ")));
+}
+
+QStringList iconNames() {
+	return {
+		"chat",			  "lightbulb", "code",		   "description",
+		"article",		  "school",	   "work",		   "build",
+		"science",		  "palette",   "music_note",   "sports_esports",
+		"takeout_dining", "flight",	   "photo_camera", "psychology_alt",
+		"favorite",		  "savings",   "gamepad",	   "auto_awesome",
+	};
+}
+
+QString cleanTitle(const QString& raw) {
+	static const auto isQuote = [](QChar c) {
+		return c == QLatin1Char('"') || c == QLatin1Char('\'') ||
+			   c == QChar(u'\u201C') || c == QChar(u'\u201D') ||
+			   c == QChar(u'\u2018') || c == QChar(u'\u2019');
+	};
+
+	QString title = raw;
+	while (title.size() >= 2 && isQuote(title.at(0)) &&
+		   isQuote(title.at(title.size() - 1)))
+		title = title.mid(1, title.size() - 2).simplified();
+	while (!title.isEmpty() && (title.endsWith(QLatin1Char('.')) ||
+								title.endsWith(QLatin1Char('!')) ||
+								title.endsWith(QLatin1Char('?'))))
+		title.chop(1);
+
+	if (title.size() > MaxTitleLength)
+		title = title.left(MaxTitleLength - 1) + QStringLiteral("…");
+	return title;
+}
+
+} // namespace ZShell::llm::prompts