Emdash source with visual editor image upload fix

Fixes:
1. media.ts: wrap placeholder generation in try-catch
2. toolbar.ts: check r.ok, display error message in popover

packages/plugins/ai-moderation/src/decision.ts

@@ -0,0 +1,100 @@
+/**
+ * Moderation Decision Logic
+ */
+
+import type { CollectionCommentSettings, ModerationDecision } from "emdash";
+
+import type { Category } from "./categories.js";
+import type { GuardResult } from "./guard.js";
+/**
+ * Compute the moderation decision for a comment.
+ *
+ * Decision flow (in priority order):
+ * 1. Authenticated CMS user → approved
+ * 2. AI flagged "block" category → spam
+ * 3. AI flagged "hold" category → pending
+ * 4. AI error (fail-safe) → pending
+ * 5. AI clean + autoApproveClean → approved
+ * 6. Collection moderation fallback
+ */
+export function computeDecision(
+	guard: GuardResult | undefined,
+	guardError: string | undefined,
+	categories: Category[],
+	settings: { autoApproveClean: boolean },
+	collectionSettings: CollectionCommentSettings,
+	priorApprovedCount: number,
+	isAuthenticatedUser: boolean,
+): ModerationDecision {
+	// 1. Auto-approve authenticated CMS users
+	if (isAuthenticatedUser) {
+		return { status: "approved", reason: "Authenticated CMS user" };
+	}
+
+	// Build category action lookup
+	const categoryActions = new Map(categories.map((c) => [c.id, c.action]));
+
+	// 2 & 3. Check AI guard results
+	// Track whether AI ran and found only ignorable categories (treat as clean)
+	let aiRanClean = guard?.safe === true;
+
+	if (guard && !guard.safe) {
+		let shouldBlock = false;
+		let shouldHold = false;
+		const flaggedCategories: string[] = [];
+
+		for (const catId of guard.categories) {
+			const action = categoryActions.get(catId);
+			if (action === "block") {
+				shouldBlock = true;
+				flaggedCategories.push(catId);
+			} else if (action === "hold" || action === undefined) {
+				// Unknown categories default to "hold" (fail-safe)
+				shouldHold = true;
+				flaggedCategories.push(catId);
+			}
+			// "ignore" categories are skipped
+		}
+
+		if (shouldBlock) {
+			return {
+				status: "spam",
+				reason: `AI flagged: ${flaggedCategories.join(", ")}`,
+			};
+		}
+
+		if (shouldHold) {
+			return {
+				status: "pending",
+				reason: `AI flagged for review: ${flaggedCategories.join(", ")}`,
+			};
+		}
+
+		// AI flagged categories but all were "ignore" — treat as clean
+		aiRanClean = true;
+	}
+
+	// 4. AI error (fail-safe: hold for review)
+	if (guardError) {
+		return {
+			status: "pending",
+			reason: `AI error: ${guardError}`,
+		};
+	}
+
+	// 5. Auto-approve clean comments when configured
+	if (settings.autoApproveClean && aiRanClean) {
+		return { status: "approved", reason: "AI verified clean" };
+	}
+
+	// 6. Fall back to collection moderation settings
+	if (collectionSettings.commentsModeration === "none") {
+		return { status: "approved", reason: "Moderation disabled" };
+	}
+
+	if (collectionSettings.commentsModeration === "first_time" && priorApprovedCount > 0) {
+		return { status: "approved", reason: "Returning commenter" };
+	}
+
+	return { status: "pending", reason: "Held for review" };
+}