Robust comparison algorithms

// Problematic: Direct comparison may fail due to trailing whitespace
if (lineA === lineB) { /* ... */ }

// Better: Normalize before comparing when appropriate
if (lineA.trimEnd() === lineB.trimEnd()) { /* ... */ }

// Problematic: 'model' shadows the outer parameter
for (const model of specificModels) {
  if (model.toLowerCase() === model) { // Always true!
    return true;
  }
}

// Better: Use distinct variable names
for (const specificModel of specificModels) {
  if (model.toLowerCase() === specificModel.toLowerCase()) {
    return true;
  }
}

// Problematic: Breaking loop on first non-match may skip valid items
for (let i = chatHistory.length - 1; i >= 0; i--) {
  if (item.message.role !== "assistant") {
    break; // Stops looking at earlier messages
  }
}

// Better: Continue searching when appropriate
for (let i = chatHistory.length - 1; i >= 0; i--) {
  if (item.message.role !== "assistant") {
    continue; // Skips this item but continues searching
  }
  // Process assistant messages
}

// Problematic: Strict equality might miss semantically equivalent items
if (i.id.providerTitle === item.id.providerTitle) {
  // Only checks exact IDs, might miss different references to same resource
}

// Better: Consider what equality means in this context
if ((i.id.providerTitle === item.id.providerTitle) ||
    (i.uri && item.uri && i.uri.value === item.uri.value)) {
  // Checks both ID equality and URI reference equality
}