docs: sync documentation with actual repo state; adapt for Gitea

- Remove all .github references (removed in 6c644dd but docs still referenced)
- Rewrite review-pr skill to use Gitea API instead of gh CLI
- Add gitea-pr.sh helper for Gitea API calls (view/diff/files/comments)
- Update project structure tree: add scripts/, .woodpecker.yml, ci-cd.md,
  status-update-checklist.md, commit-docs-reminder.sh, RESEARCH-SDD-TOOLS.md
- Fix skills count 14 → 15 (add create-skill to DOCS.md)
- Remove .github references from CONTRIBUTING.md, SECURITY.md, init-project
- Add GITEA_TOKEN to .env.example
- Update CI/CD placeholder in RECOMMENDATIONS.md to Woodpecker

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.claude/skills/review-pr/SKILL.md

@@ -1,30 +1,30 @@
 ---
 name: review-pr
-description: Review a specific GitHub pull request by number — fetches PR diff and comments via gh CLI, then provides structured review.
+description: Review a specific Gitea pull request by number — fetches PR diff and comments via Gitea API, then provides structured review.
 disable-model-invocation: true
 argument-hint: "[pr-number]"
 context: fork
 agent: code-reviewer
-allowed-tools: Bash(gh:*), Read, Grep, Glob
+allowed-tools: Bash(bash:*,curl:*,git:*), Read, Grep, Glob
 ---
 
 # Review Pull Request
 
-Review GitHub PR #$ARGUMENTS.
+Review PR #$ARGUMENTS.
 
 ## Context
 
-PR details:
-!`gh pr view $ARGUMENTS`
+PR details (JSON):
+!`bash .claude/skills/review-pr/gitea-pr.sh $ARGUMENTS view`
 
 PR diff:
-!`gh pr diff $ARGUMENTS`
+!`bash .claude/skills/review-pr/gitea-pr.sh $ARGUMENTS diff`
 
-PR comments:
-!`gh pr view $ARGUMENTS --comments 2>/dev/null || echo "No comments"`
+Changed files (JSON):
+!`bash .claude/skills/review-pr/gitea-pr.sh $ARGUMENTS files`
 
-Changed files:
-!`gh pr diff $ARGUMENTS --name-only`
+PR comments (JSON):
+!`bash .claude/skills/review-pr/gitea-pr.sh $ARGUMENTS comments`
 
 ## Steps
 
@@ -33,7 +33,7 @@ Changed files:
 3. **Read relevant source files** for full context (not just the diff)
 4. **Verify dependencies** — check new packages for CVEs via context7
 5. **Check against project rules** — read `RULES.md`
-6. **Review in priority order:** Security → Reliability → Performance → Maintainability → Testing
+6. **Review in priority order:** Security > Reliability > Performance > Maintainability > Testing
 
 7. **Report:**
 

.claude/skills/review-pr/gitea-pr.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# Fetch Gitea PR data via API
+# Usage: gitea-pr.sh <pr-number> [view|diff|files|comments]
+# Requires: GITEA_TOKEN env var (set in .env.local)
+set -euo pipefail
+
+PR="${1:?Usage: gitea-pr.sh <pr-number> [view|diff|files|comments]}"
+CMD="${2:-view}"
+
+REMOTE=$(git remote get-url origin 2>/dev/null)
+REMOTE="${REMOTE%.git}"
+
+if [[ "$REMOTE" == git@* ]]; then
+  HOST="${REMOTE#git@}"; HOST="${HOST%%:*}"
+  REPO="${REMOTE#*:}"
+else
+  tmp="${REMOTE#*://}"; HOST="${tmp%%/*}"; REPO="${tmp#*/}"
+fi
+
+API="https://${HOST}/api/v1/repos/${REPO}"
+AUTH="Authorization: token ${GITEA_TOKEN:-}"
+
+case "$CMD" in
+  view)     curl -sf -H "$AUTH" "${API}/pulls/${PR}" ;;
+  diff)     curl -sf -H "$AUTH" "${API}/pulls/${PR}.diff" ;;
+  files)    curl -sf -H "$AUTH" "${API}/pulls/${PR}/files" ;;
+  comments) curl -sf -H "$AUTH" "${API}/issues/${PR}/comments" ;;
+  *) echo "Unknown command: $CMD" >&2; exit 1 ;;
+esac