Add debug logging, alternate paths, and FTB detection to cron

- CurseForge: tries manifest.json + minecraftinstance.json
- Modrinth: modrinth.index.json (unchanged)
- FTB: version.json with parent ID detection
- All catch blocks now log exception messages for debugging
- Wings connection failures logged explicitly

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/code-bridge/archive/MSG-2026-04-12-detection-debug.md

@@ -0,0 +1,37 @@
+# Chronicler Dispatch — Detection Running But Finding Nothing
+
+**Date:** 2026-04-12
+**From:** Chronicler #84 — The Meridian
+**To:** Code
+
+---
+
+## Progress
+Detection is now scanning all 22 servers ✅. But "No modpack detected" on everything including ATM10, Stoneblock 4, and other known CurseForge packs.
+
+## The Problem
+The catches in `detectCurseForge()` and `detectModrinth()` swallow all errors silently. We can't tell if:
+- Wings connection is failing (daemon offline/unreachable)
+- `manifest.json` doesn't exist at the root level
+- `manifest.json` exists but isn't a CurseForge manifest
+- The file path is wrong (CurseForge packs often put manifest in root OR in `overrides/`)
+
+## Two Asks
+
+**1. Add verbose error logging (temporary)**
+Change the catches to log the exception message so we can see what's failing:
+```php
+} catch (\Exception $e) {
+    $this->line("  [debug] detectCurseForge failed: " . $e->getMessage());
+}
+```
+
+**2. Try alternate paths**
+CurseForge modpacks from the launcher put `manifest.json` at the pack root. But when installed on a server, it may be at:
+- `manifest.json` (root) ← current
+- `config/manifest.json`
+- `mods/manifest.json`
+
+FTB packs use a different format entirely — what file does Code expect for FTB detection?
+
+*— Chronicler #84, The Meridian*

services/modpack-version-checker/blueprint-extension/app/Console/Commands/CheckModpackUpdates.php

@@ -104,6 +104,7 @@ class CheckModpackUpdates extends Command
         try {
             $this->fileRepository->setServer($server);
         } catch (\Exception $e) {
+            $this->line("  [debug] Cannot connect to Wings: " . $e->getMessage());
             return null;
         }
 
@@ -115,28 +116,49 @@ class CheckModpackUpdates extends Command
         $mr = $this->detectModrinth($server);
         if ($mr) return $mr;
 
+        // FTB: version.json
+        $ftb = $this->detectFtb($server);
+        if ($ftb) return $ftb;
+
         return null;
     }
 
     private function detectCurseForge(Server $server): ?array
     {
-        try {
-            $content = $this->fileRepository->getContent('manifest.json');
-            $manifest = json_decode($content, true);
+        $paths = ['manifest.json', 'minecraftinstance.json'];
 
-            if (is_array($manifest) && ($manifest['manifestType'] ?? '') === 'minecraftModpack') {
-                $projectId = $manifest['projectID'] ?? null;
-                if ($projectId) {
-                    $this->info("  Detected CurseForge pack (projectID: {$projectId})");
+        foreach ($paths as $path) {
+            try {
+                $content = $this->fileRepository->getContent($path);
+                $data = json_decode($content, true);
+
+                if (!is_array($data)) continue;
+
+                // Standard manifest.json (CurseForge export)
+                if ($path === 'manifest.json' && ($data['manifestType'] ?? '') === 'minecraftModpack') {
+                    $projectId = $data['projectID'] ?? null;
+                    if ($projectId) {
+                        $this->info("  Detected CurseForge via {$path} (projectID: {$projectId})");
+                        return [
+                            'platform' => 'curseforge',
+                            'modpack_id' => (string) $projectId,
+                            'name' => $data['name'] ?? null,
+                        ];
+                    }
+                }
+
+                // minecraftinstance.json (CurseForge launcher install)
+                if ($path === 'minecraftinstance.json' && isset($data['projectID'])) {
+                    $this->info("  Detected CurseForge via {$path} (projectID: {$data['projectID']})");
                     return [
                         'platform' => 'curseforge',
-                        'modpack_id' => (string) $projectId,
-                        'name' => $manifest['name'] ?? null,
+                        'modpack_id' => (string) $data['projectID'],
+                        'name' => $data['name'] ?? null,
                     ];
                 }
+            } catch (\Exception $e) {
+                $this->line("  [debug] {$path}: " . $e->getMessage());
             }
-        } catch (\Exception $e) {
-            // File doesn't exist or node offline
         }
         return null;
     }
@@ -161,7 +183,27 @@ class CheckModpackUpdates extends Command
                 }
             }
         } catch (\Exception $e) {
-            // File doesn't exist or node offline
+            $this->line("  [debug] modrinth.index.json: " . $e->getMessage());
+        }
+        return null;
+    }
+
+    private function detectFtb(Server $server): ?array
+    {
+        try {
+            $content = $this->fileRepository->getContent('version.json');
+            $data = json_decode($content, true);
+
+            if (is_array($data) && isset($data['id']) && isset($data['parent'])) {
+                $this->info("  Detected FTB pack (id: {$data['parent']})");
+                return [
+                    'platform' => 'ftb',
+                    'modpack_id' => (string) $data['parent'],
+                    'name' => $data['name'] ?? null,
+                ];
+            }
+        } catch (\Exception $e) {
+            $this->line("  [debug] version.json (FTB): " . $e->getMessage());
         }
         return null;
     }