major: kestrel is now a tak server (#6)

## Added

- CoT (Cursor on Target) server on port 8089 enabling ATAK/iTAK device connectivity
- Support for TAK stream protocol and traditional XML CoT messages
- TLS/SSL support with automatic fallback to plain TCP
- Username/password authentication for CoT connections
- Real-time device position tracking with TTL-based expiration (90s default)
- API endpoints: `/api/cot/config`, `/api/cot/server-package`, `/api/cot/truststore`, `/api/me/cot-password`
- TAK Server section in Settings with QR code for iTAK setup
- ATAK password management in Account page for OIDC users
- CoT device markers on map showing real-time positions
- Comprehensive documentation in `docs/` directory
- Environment variables: `COT_PORT`, `COT_TTL_MS`, `COT_REQUIRE_AUTH`, `COT_SSL_CERT`, `COT_SSL_KEY`, `COT_DEBUG`
- Dependencies: `fast-xml-parser`, `jszip`, `qrcode`

## Changed

- Authentication system supports CoT password management for OIDC users
- Database schema includes `cot_password_hash` field
- Test suite refactored to follow functional design principles

## Removed

- Consolidated utility modules: `authConfig.js`, `authSkipPaths.js`, `bootstrap.js`, `poiConstants.js`, `session.js`

## Security

- XML entity expansion protection in CoT parser
- Enhanced input validation and SQL injection prevention
- Authentication timeout to prevent hanging connections

## Breaking Changes

- Port 8089 must be exposed for CoT server. Update firewall rules and Docker/Kubernetes configurations.

## Migration Notes

- OIDC users must set ATAK password via Account settings before connecting
- Docker: expose port 8089 (`-p 8089:8089`)
- Kubernetes: update Helm values to expose port 8089

Co-authored-by: Madison Grubb <madison@elastiflow.com>
Reviewed-on: #6

server/api/pois/[id].patch.js

@@ -1,39 +1,37 @@
 import { getDb } from '../../utils/db.js'
 import { requireAuth } from '../../utils/authHelpers.js'
-import { POI_ICON_TYPES } from '../../utils/poiConstants.js'
+import { POI_ICON_TYPES } from '../../utils/validation.js'
+import { buildUpdateQuery } from '../../utils/queryBuilder.js'
 
 export default defineEventHandler(async (event) => {
   requireAuth(event, { role: 'adminOrLeader' })
   const id = event.context.params?.id
   if (!id) throw createError({ statusCode: 400, message: 'id required' })
   const body = (await readBody(event)) || {}
-  const updates = []
-  const params = []
+  const updates = {}
   if (typeof body.label === 'string') {
-    updates.push('label = ?')
-    params.push(body.label.trim())
+    updates.label = body.label.trim()
   }
   if (POI_ICON_TYPES.includes(body.iconType)) {
-    updates.push('icon_type = ?')
-    params.push(body.iconType)
+    updates.icon_type = body.iconType
   }
   if (Number.isFinite(body.lat)) {
-    updates.push('lat = ?')
-    params.push(body.lat)
+    updates.lat = body.lat
   }
   if (Number.isFinite(body.lng)) {
-    updates.push('lng = ?')
-    params.push(body.lng)
+    updates.lng = body.lng
   }
-  if (updates.length === 0) {
+  if (Object.keys(updates).length === 0) {
     const { get } = await getDb()
     const row = await get('SELECT id, lat, lng, label, icon_type FROM pois WHERE id = ?', [id])
     if (!row) throw createError({ statusCode: 404, message: 'POI not found' })
     return row
   }
-  params.push(id)
   const { run, get } = await getDb()
-  await run(`UPDATE pois SET ${updates.join(', ')} WHERE id = ?`, params)
+  const { query, params } = buildUpdateQuery('pois', null, updates)
+  if (query) {
+    await run(query, [...params, id])
+  }
   const row = await get('SELECT id, lat, lng, label, icon_type FROM pois WHERE id = ?', [id])
   if (!row) throw createError({ statusCode: 404, message: 'POI not found' })
   return row