fix: harden pr-review workflow — secret redaction, log safety, auth header

- Replace flawed sed-based redaction with grep -v line-removal covering
  JS/YAML assignments, Authorization headers, AWS keys (AKIA…), Slack
  tokens (xox…), GitHub tokens (gh[opsu]_…), URLs with embedded
  credentials, and long Base64 strings
- Add -c flag to jq -n when building Ollama request body (compact JSON)
- Remove jq . full response dump to prevent LLM-echoed secrets in logs
- Change Gitea API Authorization header from `token` to `Bearer`

.gitea/workflows/pr-review.yml

@@ -58,9 +58,10 @@ jobs:
             echo "WARNING: Binary file changes detected — they will be excluded from analysis"
           fi
           DIFF_CONTENT=$(head -n 500 /tmp/pr_diff.txt \
-            | sed -E 's/(password|token|secret|api_key|private_key)[[:space:]]*[=:][[:space:]]+([^$[:space:]][^[:space:]]*)/\1=[REDACTED]/gi')
+            | grep -v -E '^[+-].*(password[[:space:]]*[=:"'"'"']|token[[:space:]]*[=:"'"'"']|secret[[:space:]]*[=:"'"'"']|api_key[[:space:]]*[=:"'"'"']|private_key[[:space:]]*[=:"'"'"']|Authorization:[[:space:]]|AKIA[A-Z0-9]{16}|xox[baprs]-[0-9]{10,13}-[0-9]{10,13}-[a-zA-Z0-9]{24}|gh[opsu]_[A-Za-z0-9_]{36,}|https?://[^@[:space:]]+:[^@[:space:]]+@)' \
+            | grep -v -E '^[+-].*[A-Za-z0-9+/]{40,}={0,2}([^A-Za-z0-9+/=]|$)')
           PROMPT="Analyze the following code changes for correctness, security issues, and best practices. PR Title: ${PR_TITLE}\n\nDiff:\n${DIFF_CONTENT}\n\nProvide a review with: 1) Summary, 2) Bugs/errors, 3) Security issues, 4) Best practices. Give specific comments with suggested fixes."
-          BODY=$(jq -n \
+          BODY=$(jq -cn \
             --arg model "qwen3-coder-next:latest" \
             --arg content "$PROMPT" \
             '{model: $model, messages: [{role: "user", content: $content}], stream: false}')
@@ -84,7 +85,6 @@ jobs:
             cat /tmp/ollama_response.json
             exit 1
           fi
-          jq . /tmp/ollama_response.json
           REVIEW=$(jq -r '.choices[0].message.content // empty' /tmp/ollama_response.json)
           if [ -z "$REVIEW" ]; then
             echo "ERROR: No content in Ollama response"
@@ -118,7 +118,7 @@ jobs:
           HTTP_CODE=$(curl -s --max-time 30 --connect-timeout 10 \
             -o /tmp/review_post_response.json -w "%{http_code}" \
             -X POST "https://gogs.tftsr.com/api/v1/repos/${REPOSITORY}/pulls/${PR_NUMBER}/reviews" \
-            -H "Authorization: token $TF_TOKEN" \
+            -H "Authorization: Bearer $TF_TOKEN" \
             -H "Content-Type: application/json" \
             -d "$BODY")
           echo "[$(date -u +%Y-%m-%dT%H:%M:%SZ)] Post review HTTP status: $HTTP_CODE"