fix: correct API issues found by second codex review across 14 CLIs

Fixes from thorough codex review (o3 high reasoning, 5 parallel batches):

Validation fixes:
- customer-io: add ID validation for customer/campaign commands, event name check
- dub: fix links get to use /links/info endpoint, add --id validation
- google-search-console: fix countries to use ['country'] only, add --url validation
- mention-me: add --customer-id validation on referral/share/reward commands
- tolt: add --id validation for affiliates get/update

Auth & API fixes:
- apollo: move API key from header to JSON body, fix search endpoint path
- rewardful: change from Bearer to Basic auth
- hotjar: split OAuth URL (unversioned) from resource URL (v2)
- amplitude: wrap retention e param in JSON array
- snov: change list prospects from GET to POST with JSON body
- optimizely: change archive from DELETE to PATCH status=archived
- google-ads: fix budget body field from camelCase to snake_case
- resend: change webhook field from endpoint to url, add validation
- linkedin-ads: add required campaignGroup URN, fix numeric amount types

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tools/clis/linkedin-ads.js

@@ -76,17 +76,19 @@ async function main() {
         }
         case 'create': {
           if (!args['account-id'] || !args.name) { result = { error: '--account-id and --name required' }; break }
+          if (!args['campaign-group-id']) { result = { error: '--campaign-group-id required' }; break }
           const body = {
             account: `urn:li:sponsoredAccount:${args['account-id']}`,
+            campaignGroup: `urn:li:sponsoredCampaignGroup:${args['campaign-group-id']}`,
             name: args.name,
             type: args.type || 'SPONSORED_UPDATES',
             costType: args['cost-type'] || 'CPC',
             unitCost: {
-              amount: args['unit-cost'] || '5.00',
+              amount: parseFloat(args['unit-cost'] || '5.00'),
               currencyCode: 'USD',
             },
             dailyBudget: {
-              amount: args['daily-budget'] || '100.00',
+              amount: parseFloat(args['daily-budget'] || '100.00'),
               currencyCode: 'USD',
             },
             status: 'PAUSED',