Address code review feedback: strengthen type guards and remove unsafe assertions

[Copilot]

Applies code review feedback from PR #26 to eliminate type safety gaps and unsafe patterns introduced by the runtime bug fixes.

Type guard strengthening:

• xapi.ts:fetchThread() - Guard with Array.isArray() instead of truthiness check. Truthiness allows non-array objects to reach parseThread(), which expects array methods.

Unsafe type assertion removal:

• agent.ts pruning loop - Replace iter.next().value as string with destructured { value, done } pattern. Assertion masks potential exhaustion bugs; explicit done check surfaces them.

TypeScript strictness:

• index.ts console override - Change any[] to unknown[] for stricter rest parameter typing.

// Before: Silent failure on object response
if (!response || !response.data) return null;
return this.parseThread(response.data);  // Crashes if data is {}

// After: Explicit array validation
if (!response || !response.data) return null;
if (!Array.isArray(response.data)) {
  console.warn('X API thread response data is not an array');
  return null;
}
return this.parseThread(response.data);

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[Copilot]

Pull request overview

This PR applies follow-up type-safety improvements across the X API client and agent loop to prevent runtime crashes and remove unsafe TypeScript assertions.

Changes:

• Strengthen fetchThread() response validation by requiring response.data to be an array before calling parseThread().
• Replace an unsafe iterator .value as string assertion with a { value, done }-based loop in mention-pruning.
• Tighten console.log override typing from any[] to unknown[].

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 1 comment.

File	Description
src/services/xapi.ts	Adds Array.isArray guard to ensure thread data matches parseThread() expectations.
src/services/agent.ts	Refactors Set pruning loop to avoid unsafe type assertions (but currently introduces a strict-typing issue).
src/index.ts	Makes console.log override stricter by using unknown[].
package-lock.json	Adds "peer": true flags to some packages (appears unrelated to PR purpose).

[Copilot]

iter.next() returns an IteratorResult<string, undefined>, and after destructuring the relationship between done and value is lost, so value remains string | undefined even after the if (done) guard. This will fail strict TypeScript (and could delete undefined at runtime if the iterator is exhausted). Consider keeping the result object (const next = iter.next(); if (next.done) break; delete(next.value)) or add an explicit value === undefined guard before calling delete.

Suggested change

	const { value, done } = iter.next();
	if (done) {
	break;
	}
	this.processedMentions.delete(value);
	const next = iter.next();
	if (next.done || next.value === undefined) {
	break;
	}
	this.processedMentions.delete(next.value);