docs: Add Dify app configuration via database procedure

FFG-DEP-DIFY-001 — how to configure Dify apps without UI
Covers: rename, link KB, update dataset config, get API tokens
Includes current state for The Forge and Awakened Concierge
Key insight: direct DB manipulation avoids UI publish problem

docs/deployment/dify-app-configuration.md

@@ -0,0 +1,104 @@
+# Dify App Configuration via Database
+
+**Document ID:** FFG-DEP-DIFY-001
+**Created:** April 12, 2026 (Chronicler #84 — The Meridian)
+**Purpose:** How to configure Dify apps without using the UI (avoids "everything disappears if you don't publish" problem)
+
+---
+
+## Why This Exists
+
+Dify's web UI loses unsaved changes if you navigate away before publishing. The API uses session-based auth that's not easily accessible. The cleanest approach is direct database manipulation via the Dify PostgreSQL container.
+
+---
+
+## Key Database Info
+
+- **Container:** `firefrost-codex-db-1` on TX1 Dallas (38.68.14.26)
+- **Database:** `dify`
+- **User:** `postgres`
+- **Access:** `docker exec firefrost-codex-db-1 psql -U postgres -d dify -c "..."`
+
+---
+
+## Key Tables
+
+| Table | Purpose |
+|-------|---------|
+| `apps` | App name, mode, config ID |
+| `app_model_configs` | Model, system prompt, dataset config |
+| `app_dataset_joins` | Links apps to knowledge bases |
+| `api_tokens` | API keys per app |
+| `datasets` | Knowledge bases |
+
+---
+
+## Common Operations
+
+### Rename an app
+```sql
+UPDATE apps SET name = 'The Forge' WHERE id = '<app_id>';
+```
+
+### Find app ID by name
+```sql
+SELECT id, name, mode FROM apps ORDER BY created_at DESC LIMIT 10;
+```
+
+### Get app API token
+```sql
+SELECT token FROM api_tokens WHERE app_id = '<app_id>';
+```
+
+### Link KB to app
+```sql
+INSERT INTO app_dataset_joins (app_id, dataset_id)
+VALUES ('<app_id>', '<dataset_id>');
+```
+
+### Update dataset config (enable hybrid search)
+```sql
+UPDATE app_model_configs 
+SET dataset_configs = '{
+  "retrieval_model": "multiple",
+  "datasets": {
+    "datasets": [{
+      "dataset": {
+        "enabled": true,
+        "id": "<dataset_id>"
+      }
+    }]
+  }
+}'::jsonb
+WHERE id = '<config_id>';
+```
+
+### Get config ID for an app
+```sql
+SELECT app_model_config_id FROM apps WHERE name = 'The Forge';
+```
+
+---
+
+## The Forge — Current State (April 12, 2026)
+
+| Property | Value |
+|----------|-------|
+| App ID | `faf87e2a-1e98-4a0b-af14-b997ad1d3482` |
+| Config ID | `805eae6e-4cfd-43da-9e8b-3bc979a736b2` |
+| API Token | `app-forge-trinity-console-key` |
+| Model | `gemma4:26b-a4b-it-q8_0` |
+| KB (v2) | `3776b10b-918d-48d8-933b-e3dd0655838a` |
+
+## Awakened Concierge — Current State (April 12, 2026)
+
+| Property | Value |
+|----------|-------|
+| App ID | `329a6bdb-5b19-45ce-a003-1861a5473d39` |
+| API Token | `app-pwucQuDCos5VXlVTQHnXPZAD` |
+| Model | `gemma4:26b-a4b-it-q8_0` |
+| KB | None (prompt-only) |
+
+---
+
+**Fire + Frost + Foundation = Where Love Builds Legacy** 💙🔥❄️