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

app/pages/account.vue

@@ -94,6 +94,71 @@
       </div>
     </section>
 
+    <section
+      v-if="user"
+      class="mb-8"
+    >
+      <h3 class="kestrel-section-label">
+        ATAK / device password
+      </h3>
+      <div class="kestrel-card p-4">
+        <p class="mb-3 text-sm text-kestrel-muted">
+          {{ user.auth_provider === 'oidc' ? 'Set a password to use when connecting from ATAK (check "Use Authentication" and enter your KestrelOS username and this password).' : 'Optionally set a separate password for ATAK; otherwise use your login password.' }}
+        </p>
+        <p
+          v-if="cotPasswordSuccess"
+          class="mb-3 text-sm text-green-400"
+        >
+          ATAK password saved.
+        </p>
+        <p
+          v-if="cotPasswordError"
+          class="mb-3 text-sm text-red-400"
+        >
+          {{ cotPasswordError }}
+        </p>
+        <form
+          class="space-y-3"
+          @submit.prevent="onSetCotPassword"
+        >
+          <div>
+            <label
+              for="account-cot-password"
+              class="kestrel-label"
+            >ATAK password</label>
+            <input
+              id="account-cot-password"
+              v-model="cotPassword"
+              type="password"
+              autocomplete="new-password"
+              class="kestrel-input"
+              :placeholder="user.auth_provider === 'oidc' ? 'Set password for ATAK' : 'Optional'"
+            >
+          </div>
+          <div>
+            <label
+              for="account-cot-password-confirm"
+              class="kestrel-label"
+            >Confirm ATAK password</label>
+            <input
+              id="account-cot-password-confirm"
+              v-model="cotPasswordConfirm"
+              type="password"
+              autocomplete="new-password"
+              class="kestrel-input"
+            >
+          </div>
+          <button
+            type="submit"
+            class="rounded bg-kestrel-accent px-4 py-2 text-sm font-medium text-kestrel-bg transition-opacity hover:opacity-90 disabled:opacity-50"
+            :disabled="cotPasswordLoading"
+          >
+            {{ cotPasswordLoading ? 'Saving…' : 'Save ATAK password' }}
+          </button>
+        </form>
+      </div>
+    </section>
+
     <section
       v-if="user?.auth_provider === 'local'"
       class="mb-8"
@@ -181,6 +246,11 @@ const confirmPassword = ref('')
 const passwordLoading = ref(false)
 const passwordSuccess = ref(false)
 const passwordError = ref('')
+const cotPassword = ref('')
+const cotPasswordConfirm = ref('')
+const cotPasswordLoading = ref(false)
+const cotPasswordSuccess = ref(false)
+const cotPasswordError = ref('')
 
 const accountInitials = computed(() => {
   const id = user.value?.identifier ?? ''
@@ -254,4 +324,34 @@ async function onChangePassword() {
     passwordLoading.value = false
   }
 }
+
+async function onSetCotPassword() {
+  cotPasswordError.value = ''
+  cotPasswordSuccess.value = false
+  if (cotPassword.value !== cotPasswordConfirm.value) {
+    cotPasswordError.value = 'Password and confirmation do not match.'
+    return
+  }
+  if (cotPassword.value.length < 1) {
+    cotPasswordError.value = 'Password cannot be empty.'
+    return
+  }
+  cotPasswordLoading.value = true
+  try {
+    await $fetch('/api/me/cot-password', {
+      method: 'PUT',
+      body: { password: cotPassword.value },
+      credentials: 'include',
+    })
+    cotPassword.value = ''
+    cotPasswordConfirm.value = ''
+    cotPasswordSuccess.value = true
+  }
+  catch (e) {
+    cotPasswordError.value = e.data?.message ?? e.message ?? 'Failed to save ATAK password.'
+  }
+  finally {
+    cotPasswordLoading.value = false
+  }
+}
 </script>