feat: initial terraform-git project

Manage Gitea resources via Terraform/Terragrunt with YAML-driven config.

Resources managed:
- Organisation (unkin)
- 28 repositories with settings
- 6 teams with members
- 13 branch protection rules
- 9 Woodpecker CI repo activations
- Deploy key module (ready, no keys yet)

Config structure: config/<service>/<org>/<type>/<object>.yaml
Consul backend for state, Vault for auth tokens.

.pre-commit-config.yaml

@@ -0,0 +1,24 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+      - id: end-of-file-fixer
+        types: [yaml]
+      - id: trailing-whitespace
+        types: [yaml]
+  - repo: https://github.com/gruntwork-io/pre-commit
+    rev: v0.1.30
+    hooks:
+      - id: tofu-fmt
+      - id: tofu-validate
+      - id: tflint
+      - id: terragrunt-hcl-fmt
+  - repo: https://github.com/adrienverge/yamllint.git
+    rev: v1.37.1
+    hooks:
+      - id: yamllint
+        args:
+          [
+            "-d {extends: relaxed, rules: {line-length: disable}, ignore: chart}",
+            "-s",
+          ]