docs: rename docs/ -> serverAppConfigs-docs/ per system-wide PROJECTNAME-docs convention

All in-repo path references (AGENTS.md, README, old scripts, report artifacts,
test code paths) rewritten in the same commit; focused-test map extended for
.gitignore, old/scripts/*, dankclaw/comfyui/*, and report/* per this repo's
own convention ('add one before committing'). Obsidian wikilinks are
title-based and unaffected.

serverAppConfigs-docs/Dankclaw/Postgres.md

@@ -0,0 +1,70 @@
+# Postgres
+
+PostgreSQL is the database backend for Gitea. It runs on the same podman network as Gitea and holds the repository metadata, users, and issue data.
+
+**Host:** Dankclaw — **Docs:** https://www.postgresql.org/docs
+
+## Facts
+
+| Item | Value |
+|------|-------|
+| Image | `docker.io/library/postgres:16-alpine` |
+| Port | 5432 (internal only) |
+| Data volume | bind mount at `/var/lib/postgresql/data` |
+
+## Configuration
+
+```yaml
+services:
+  postgres:
+    image: docker.io/library/postgres:16-alpine
+    restart: unless-stopped
+    environment:
+      POSTGRES_USER: gitea
+      POSTGRES_PASSWORD: "${GITEA_DB_PASSWORD}"
+      POSTGRES_DB: gitea
+    volumes:
+      - /opt/gitea/data/gitea-postgres:/var/lib/postgresql/data
+```
+
+## Gitea Connection
+
+Gitea reaches the database over the `systemd-gitea` network (quadlet-managed live, compose-managed after the full-stack deploy):
+
+```yaml
+environment:
+  DATABASE_TYPE: postgres
+  DATABASE_HOST: gitea-postgres
+  DATABASE_NAME: gitea
+  DATABASE_USER: gitea
+  DATABASE_PASSWD: "${GITEA_DB_PASSWORD}"
+```
+
+The live `app.ini` on the host overrides env vars. When you rename the database container, update its `[database] HOST` line. See [[Gitea]] Gotchas.
+
+## Migration
+
+The live Gitea stack on Dankclaw already runs this image with the data at `/opt/gitea/data/gitea-postgres`. The migration keeps the bind mount in place; see [[Gitea]].
+
+## Healthcheck
+
+Use `pg_isready`:
+
+```yaml
+healthcheck:
+  test: ["CMD-SHELL", "pg_isready -U gitea"]
+  interval: 30s
+  timeout: 5s
+  retries: 3
+```
+
+## Gotchas
+
+- The database password must match between the `postgres` service and Gitea's `DATABASE_PASSWD`; both come from the same `.env` variable.
+- Do not change the Gitea `SECRET_KEY` or `INTERNAL_TOKEN` after migration — encrypted data becomes unreadable.
+- Back up with `pg_dump`; see [[Gitea]] (knowledge base).
+
+## See Also
+
+- [[Gitea]]
+- [[Dankclaw Stack]]