fix: normalize pi-plugin indentation to match biome config

Biome config enforces 4-space indentation but these files used tabs.
Also fixes missing trailing newline in strip-tag-prefix.ts.
Run: bun run --cwd packages/pi-plugin lint passes clean.

Related to #97

Author: Zireael

packages/pi-plugin/src/strip-tag-prefix.ts

@@ -1,48 +1,57 @@
-/**
- * Strip injected `§N§` tag prefixes AND defensively strip cargo-cult MC tag
- * notation from assistant text before Pi persists the message.
- *
- * Mirrors OpenCode's `text-complete.ts` via {@link stripPersistedAssistantText}:
- * whole `§N§` pairs globally, malformed hybrids, then stray `§`. Does not strip
- * bare leading digits on the transform path.
- *
- * Pi persists raw assistant text from `message_end`; this hook mutates text parts
- * before `agent-session.ts:appendMessage()` writes jsonl.
- *
- * Only `assistant` messages are stripped. User/tool messages keep intentional tags.
- */
-
-import { stripPersistedAssistantText } from "../../plugin/src/hooks/magic-context/tag-content-primitives";
-
-/**
- * Mutate the given assistant message's text parts in place to strip MC tag notation.
- *
- * Returns true if any text was modified. Production callers use `registerStripTagPrefix`.
- */
-export function stripTagPrefixFromAssistantMessage(message: {
-	role: string;
-	content: unknown;
-}): boolean {
-	if (message.role !== "assistant") return false;
-	if (!Array.isArray(message.content)) return false;
-
-	let mutated = false;
-	for (const part of message.content) {
-		if (
-			part === null ||
-			typeof part !== "object" ||
-			(part as { type?: unknown }).type !== "text"
-		) {
-			continue;
-		}
-		const textPart = part as { type: "text"; text: unknown };
-		if (typeof textPart.text !== "string") continue;
-		const stripped = stripPersistedAssistantText(textPart.text);
-		if (stripped !== textPart.text) {
-			textPart.text = stripped;
-			mutated = true;
-		}
-	}
-	return mutated;
-}
-
+/**
+ * Strip injected `§N§` tag prefixes AND defensively strip cargo-cult MC tag
+ * notation from assistant text before Pi persists the message.
+ *
+ * Mirrors OpenCode's `text-complete.ts` via {@link stripPersistedAssistantText}:
+ * whole `§N§` pairs globally, malformed hybrids, then stray `§`. Does not strip
+ * bare leading digits on the transform path.
+ *
+ * Pi persists raw assistant text from `message_end`; this hook mutates text parts
+ * before `agent-session.ts:appendMessage()` writes jsonl.
+ *
+ * Only `assistant` messages are stripped. User/tool messages keep intentional tags.
+ */
+
+import { stripPersistedAssistantText } from "../../plugin/src/hooks/magic-context/tag-content-primitives";
+
+/**
+ * Mutate the given assistant message's text parts in place to strip MC tag notation.
+ *
+ * Returns true if any text was modified. Production callers use `registerStripTagPrefix`.
+ */
+
+export function stripTagPrefixFromAssistantMessage(message: {
+	role: string;
+
+	content: unknown;
+}): boolean {
+	if (message.role !== "assistant") return false;
+
+	if (!Array.isArray(message.content)) return false;
+
+	let mutated = false;
+
+	for (const part of message.content) {
+		if (
+			part === null ||
+			typeof part !== "object" ||
+			(part as { type?: unknown }).type !== "text"
+		) {
+			continue;
+		}
+
+		const textPart = part as { type: "text"; text: unknown };
+
+		if (typeof textPart.text !== "string") continue;
+
+		const stripped = stripPersistedAssistantText(textPart.text);
+
+		if (stripped !== textPart.text) {
+			textPart.text = stripped;
+
+			mutated = true;
+		}
+	}
+
+	return mutated;
+}

packages/pi-plugin/src/temporal-awareness-pi.ts

@@ -78,7 +78,9 @@ export function injectPiTemporalMarkers(messages: unknown[]): number {
 				const userMsg = msg as PiUserMessage;
 				if (typeof userMsg.content === "string") {
 					if (!TEMPORAL_MARKER_PATTERN.test(stripTagPrefix(userMsg.content))) {
-						const { tagPrefix, body } = peelLeadingMcTagNotation(userMsg.content);
+						const { tagPrefix, body } = peelLeadingMcTagNotation(
+							userMsg.content,
+						);
 						(messages as PiAgentMessage[])[i] = {
 							...userMsg,
 							content: tagPrefix + prefix + body,