refactor: 將 herdr-issue 併入 herdr 外掛並改名為 gitea-issue

指令由 /herdr-issue:herdr-issue 改為 /herdr:gitea-issue，herdr 升至 0.0.2。

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

plugins/herdr/skills/gitea-issue/scripts/ready.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+# 用法：ready.sh <owner/repo>
+# 列出可執行的議題（open、ready-for-agent、Gitea 原生依賴全關、Herdr 沒在跑、沒掛 in-progress）。被阻擋的不列。
+source "$(dirname "$0")/lib.sh"
+REPO="${1:?用法：ready.sh <owner/repo>}"
+T="$(mktemp -d)"; trap 'rm -rf "$T"' EXIT
+tea issues list --repo "$REPO" --state open --limit 500 --output json --fields index,title,labels,body > "$T/open.json"
+herdr agent list > "$T/agents.json"
+herdr tab list --workspace "${HERDR_WORKSPACE_ID:?}" > "$T/tabs.json"
+python3 "$SCRIPTS/ready.py" "$T/open.json" "$T/agents.json" "$T/tabs.json" "$REPO"