Add Database Standards preset to community catalog

Add db-standards preset submitted by @gdakuzak to the community catalog and documentation.\n\nCloses #4654\n\nAssisted-by: GitHub Copilot (model: gpt-5.2-codex, autonomous)\nCo-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: github-actions[bot]

docs/community/presets.md

@@ -17,6 +17,7 @@ The following community-contributed presets customize how Spec Kit behaves — o
 | Closed Vocabulary Check | Adds a pass to /speckit.analyze that flags closed sets of values enumerated more than once with different members, and reports its own coverage. | 1 command | — | [spec-kit-preset-closed-vocabulary](https://github.com/yunusdim/spec-kit-preset-closed-vocabulary) |
 | Command Density | Compacts the nine core Spec Kit command prompts while preserving scripts, handoffs, placeholders, hook output blocks, and rule structure | 9 commands | — | [spec-kit-preset-command-density](https://github.com/Xopoko/spec-kit-preset-command-density) |
 | Cross-Platform Governance | Adds Bash/PowerShell parity, read-only checks, path and native-override review, Unix man pages, bilingual PowerShell help, and provider-neutral model routing. | 9 templates, 3 commands | — | [spec-kit-preset-cross-platform-governance](https://github.com/hindermath/spec-kit-preset-cross-platform-governance) |
+| Database Standards | Database conventions for spec-driven work: naming, data-model design, constraints, data protection, performance, query safety, a schema-review checklist, and engine-specific references. ORM-agnostic. | 4 templates, 1 command | — | [spec-kit-preset-db-standards](https://github.com/gdakuzak/spec-kit-preset-db-standards) |
 | Explicit Task Dependencies | Adds explicit `(depends on T###)` dependency declarations and an Execution Wave DAG to tasks.md for parallel scheduling | 1 template, 1 command | — | [spec-kit-preset-explicit-task-dependencies](https://github.com/Quratulain-bilal/spec-kit-preset-explicit-task-dependencies) |
 | Fiction Book Writing | It adapts the Spec-Driven Development workflow for storytelling to create books or audiobooks (with annotations) in 12 languages: features become story elements, specs become story briefs, plans become story structures, and tasks become scene-by-scene writing tasks. Supports single and multi-POV, all major plot structure frameworks, and two style modes: an author voice sample or humanized AI prose principles. Supports interactive elements like brainstorming, interview, roleplay, and extras like statistics, cover builder, illustration builder, and bio command. Export with templates for KDP, D2D, etc. | 26 templates, 34 commands, 2 scripts | — | [speckit-preset-fiction-book-writing](https://github.com/adaumann/speckit-preset-fiction-book-writing) |
 | Game Narrative Writing | Preset for game narrative design and interactive storytelling. It adapts the Spec-Driven Development workflow for game narratives: features become story mechanics, specs become narrative briefs, plans become story maps, and tasks become dialogue and scene-writing tasks. Supports branching narratives, player agency systems, state machines, and interactive dialogue trees. | 37 templates, 34 commands, 5 scripts | — | [speckit-preset-game-narrative-writing](https://github.com/adaumann/speckit-preset-game-narrative-writing) |

presets/catalog.community.json

@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-09-15T00:00:00Z",
+  "updated_at": "2026-09-23T00:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/presets/catalog.community.json",
   "presets": {
     "a11y-governance": {
@@ -456,6 +456,34 @@
       "created_at": "2026-07-21T00:00:00Z",
       "updated_at": "2026-08-17T00:00:00Z"
     },
+    "db-standards": {
+      "name": "Database Standards",
+      "id": "db-standards",
+      "version": "0.8.2",
+      "description": "Database conventions for spec-driven work: naming, data-model design, constraints, data protection, performance, query safety, a schema-review checklist, and engine-specific references. ORM-agnostic.",
+      "author": "Guilherme Dakuzaku",
+      "repository": "https://github.com/gdakuzak/spec-kit-preset-db-standards",
+      "download_url": "https://github.com/gdakuzak/spec-kit-preset-db-standards/archive/refs/tags/v0.8.2.zip",
+      "sha256": "6d1a027b29556a9351cfd5150dcab36b41af631c773f3e49d0bad1c49590c42c",
+      "homepage": "https://github.com/gdakuzak/spec-kit-preset-db-standards",
+      "documentation": "https://github.com/gdakuzak/spec-kit-preset-db-standards/blob/main/README.md",
+      "license": "MIT",
+      "requires": {
+        "speckit_version": "0.1.0"
+      },
+      "provides": {
+        "templates": 4,
+        "commands": 1
+      },
+      "tags": [
+        "database",
+        "standards",
+        "data-modeling",
+        "performance"
+      ],
+      "created_at": "2026-09-23T00:00:00Z",
+      "updated_at": "2026-09-23T00:00:00Z"
+    },
     "intake-sequencing-governance": {
       "name": "Intake Sequencing Governance",
       "id": "intake-sequencing-governance",