Rewrite the gateway around health, retries, slicing and a Windows service

Scanner
- manifest lookup is now depth-bounded and prunes numeric zoom directories, so
  a scan no longer walks the whole tile payload
- rescans only report a version as updated when something actually changed
- overlapping runs are refused instead of interleaving their bookkeeping

Hot path
- token authorisation loads only that token grants and throttles the
  last_used_at write instead of touching it on every tile
- SQLite runs in WAL with a busy timeout and a real connection pool
- the catalog lookup used by /tiles no longer loads every basemap

Security
- the admin surface requires ADMIN_TOKEN (bearer) or ADMIN_USER/ADMIN_PASSWORD
  (basic), and the service refuses to bind off-host without credentials
- CORS is an explicit allow-list; newly minted tokens never reach a redirect URL
- client tokens are redacted from the access log

Operations
- resource health inspection flags a moved or deleted tile root before a 404
- pushes retry with backoff and can be re-queued by hand; the schedule lives in
  the database so a restart does not lose it
- access log plus /metrics counters

Image slicing
- tile_jobs drive the GDAL bundled with QGIS via scripts/gdal2tiles-qgis.bat
- layer_sources remembers what a layer is made of: submit one source to append
  a flight, or all of them to rebuild the layer as a VRT mosaic with no tile
  seams; the console exposes both, including a one-click rebuild
- slicing is available to integrations through a narrow slice token scope
  (submit, poll, idempotent by code, completion callback)

Console
- rebuilt around a fixed rail and single-view navigation with health and
  outstanding work leading, instead of one long scrolling page

Windows service
- native install/start/stop/status with crash recovery, auto-start and a
  rotating log file, so no NSSM wrapper is needed
- start-all.bat and stop-all.bat are removed: they killed the process by port
  with taskkill, which fought the service restart policy

Verified with 49 tests and live runs against real tile data and real GDAL.
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# Insar_management_system_v2 接入说明
本文档说明 `Z:\Code\Insar_management_system_v2` 如何接入当前 `tile-server`,不需要修改推送服务外部的公开匿名路由,全部走带 token 的受保护接口。
## 结论
当前 `tile-server` 经过兼容后,可以支撑 `Insar_management_system_v2` 的底图和 GeoJSON/SHP 调用,但前提是目标系统把原先的固定静态路径改成带 token 的调用方式。
支持范围:
- 底图瓦片
- GeoJSON 文件直连读取
- Shapefile 或 `.zip` 方式下载
不需要目标系统实现“接收推送”的回调接口。
## 推荐调用方式
假设服务地址为:
```text
http://127.0.0.1:8910
```
假设访问 token 为:
```text
bmp_xxxxxxxxxxxxxxxxx
```
### 1. 底图瓦片
推荐直接使用默认版本兼容路由:
```text
GET /tiles/{code}/{z}/{x}/{y}.ext?token=...
```
示例:
```text
http://127.0.0.1:8910/tiles/google_image/{z}/{x}/{y}.webp?token=bmp_xxx
http://127.0.0.1:8910/tiles/gaode_image/{z}/{x}/{y}.webp?token=bmp_xxx
http://127.0.0.1:8910/tiles/gaode_shp/{z}/{x}/{y}.webp?token=bmp_xxx
```
说明:
- `google_image`、`gaode_image`、`gaode_shp` 可以直接保留下划线写法
- 服务内部会归一化到对应底图库 code
- 路由会自动解析该底图的默认版本
如果你希望显式锁定版本,也可以继续使用:
```text
GET /tiles/{code}/{version}/{z}/{x}/{y}.ext?token=...
```
### 2. GeoJSON
推荐直接按原始相对路径访问:
```text
GET /geojson/{relative/path}.geojson?token=...
```
示例:
```text
http://127.0.0.1:8910/geojson/全国行政区.geojson?token=bmp_xxx
```
说明:
- 支持按原始相对路径访问
- 也支持按文件名访问
- 也支持按内部 vector code 访问
- 返回内容为实际 GeoJSON 文件内容,可直接 `fetch(...).json()`
### 3. SHP
推荐按原始相对路径下载:
```text
GET /shp/{relative/path}.shp?token=...
```
示例:
```text
http://127.0.0.1:8910/shp/landuse/parcel.shp?token=bmp_xxx
```
说明:
- 如果底层资源是 `.shp + .dbf + .shx ...` 组合,服务会自动打包成 zip 返回
- 如果底层资源本来就是 `.zip`,则直接返回 zip
如果你希望继续按内部 code 下载,也可以使用:
```text
GET /vectors/{code}/download?token=...
```
## Token 传递方式
支持以下方式,推荐前端场景使用查询参数:
### 查询参数
```text
?token=bmp_xxx
```
### Header
```text
Authorization: Bearer bmp_xxx
```
或:
```text
X-Access-Token: bmp_xxx
```
## 前端改造建议
### 底图常量
把原先:
```js
`${TILE_BASE}/tiles/google_image/{z}/{x}/{y}.webp`
```
改成:
```js
`${TILE_BASE}/tiles/google_image/{z}/{x}/{y}.webp?token=${encodeURIComponent(TILE_TOKEN)}`
```
其他底图同理。
### 行政区 GeoJSON
把原先:
```js
`${TILE_BASE}/geojson/全国行政区.geojson`
```
改成:
```js
`${TILE_BASE}/geojson/全国行政区.geojson?token=${encodeURIComponent(TILE_TOKEN)}`
```
## 推荐接入流程
1. 在 `tile-server` 管理页或管理 API 扫描底图目录和矢量目录。
2. 创建一个专供 `Insar_management_system_v2` 使用的 token。
3. token 授权对应底图和需要访问的 GeoJSON/SHP 资源。
4. 在 `Insar_management_system_v2` 中把静态地址改成带 token 的服务地址。
## 创建 token 时的资源填写规则
### 底图
填写底图库 code,例如:
```text
google-image
gaode-image
gaode-shp
```
### 矢量
现在既可以填内部 code,也可以直接填原始路径,例如:
```text
全国行政区.geojson
landuse/parcel.shp
```
## 适配边界
当前服务负责的是:
- 扫描
- 目录管理
- token 鉴权
- 底图瓦片输出
- GeoJSON/SHP 输出
当前服务不负责:
- 生成切片
- 把矢量转换成 GeoJSON
- 修改 `Insar_management_system_v2` 代码