feat(settings): S1 AES-GCM crypto + Settings API/UI (masked write-only secrets)

- backend/crypto.py: AES-GCM (cryptography.AESGCM); key=base64(SLAB_AES_KEY)
  must be exactly 32 bytes; value_enc=base64(nonce(12)||ct); DecryptError on tamper
- backend/settings.py: get_settings (secrets->{configured:bool}, woo_base_url env
  read-only, flags default false), update_settings (rejects woo_base_url SETTINGS-85,
  encrypts secrets, partial plain writes)
- backend/app.py: wire GET/PUT /api/v1/settings
- frontend/src/create/settings/Settings.svelte: masked form + partial PUT
- tests: crypto roundtrip/tamper, masked GET, encrypted PUT, reject woo_base_url,
  flags default, decrypt-fail->configured:false (TDD)

Verified live: secrets round-trip configured:true with valid key; woo_base_url write
rejected 400; no secret leak in GET. Gates: check_requirements + check_coverage exit 0;
pytest 13 passed. Deploy+build on ubudual5060 (never Windows).

backend/app.py

@@ -19,9 +19,11 @@ from contextlib import asynccontextmanager
 
 from fastapi import FastAPI, HTTPException, Request
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
 from starlette.middleware.base import BaseHTTPMiddleware
 
 from .db import get_connection, init_db, probe_images_writable, probe_writable
+from . import settings as settings_mod
 
 __version__ = "0.5.0-m3-s0"
 
@@ -138,6 +140,13 @@ app.add_middleware(
 app.add_middleware(RequestIdMiddleware)
 
 
+@app.exception_handler(HTTPException)
+async def _unwrap_error(request: Request, exc: HTTPException):
+    if isinstance(exc.detail, dict) and "error" in exc.detail:
+        return JSONResponse(status_code=exc.status_code, content=exc.detail)
+    return JSONResponse(status_code=exc.status_code, content={"error": {"code": "validation" if exc.status_code == 400 else "internal", "message": str(exc.detail), "detail": None}})
+
+
 @app.get("/api/health")
 async def health() -> dict[str, Any]:
     """Health per APP-30/45: non-200 when db or image volume not writable (probe file)."""
@@ -159,5 +168,15 @@ async def meta() -> dict[str, Any]:
     return {"version": __version__}
 
 
+@app.get("/api/v1/settings")
+async def get_settings() -> dict[str, Any]:
+    return settings_mod.get_settings()
+
+
+@app.put("/api/v1/settings")
+async def put_settings(payload: dict[str, Any]) -> dict[str, Any]:
+    return settings_mod.update_settings(payload)
+
+
 # expose for tests
 __all__ = ["app", "__version__"]

backend/crypto.py

@@ -0,0 +1,65 @@
+"""S1 AES-GCM crypto helpers (SETTINGS-20, SETTINGS-25, QUALITY-125).
+
+Master key = SLAB_AES_KEY env (32-byte base64). Ciphertext = nonce(12) || ct (GCM tag verified on decrypt).
+value_enc stores base64(nonce||ct). Decrypt failures are detectable (no crash, no secret leak).
+"""
+from __future__ import annotations
+
+import base64
+import os
+
+from cryptography.hazmat.primitives.ciphers.aead import AESGCM
+from cryptography.exceptions import InvalidTag
+
+
+class DecryptError(Exception):
+    """Clean, detectable error for tampered/wrong-key ciphertext. Never leaks raw blob."""
+    pass
+
+
+def _get_key() -> bytes:
+    key_b64 = os.environ.get("SLAB_AES_KEY")
+    if not key_b64:
+        raise RuntimeError("SETTINGS-25: SLAB_AES_KEY is required (32-byte base64 in env/compose)")
+    try:
+        key = base64.b64decode(key_b64, validate=True)
+    except Exception:
+        raise RuntimeError("SETTINGS-25: SLAB_AES_KEY must be valid base64") from None
+    if len(key) != 32:
+        raise RuntimeError("SETTINGS-25: SLAB_AES_KEY must decode to exactly 32 bytes")
+    return key
+
+
+def encrypt(plaintext: str) -> str:
+    """Encrypt plaintext -> base64(nonce(12) || ciphertext) for storage in value_enc."""
+    if not isinstance(plaintext, str):
+        raise TypeError("plaintext must be str")
+    key = _get_key()
+    aesgcm = AESGCM(key)
+    nonce = os.urandom(12)
+    ct = aesgcm.encrypt(nonce, plaintext.encode("utf-8"), None)
+    blob = nonce + ct
+    return base64.b64encode(blob).decode("ascii")
+
+
+def decrypt(ciphertext_b64: str) -> str:
+    """Decrypt base64 blob; verifies GCM tag. Raises DecryptError on tamper/wrong key (no leak)."""
+    if not isinstance(ciphertext_b64, str):
+        raise TypeError("ciphertext_b64 must be str")
+    key = _get_key()
+    try:
+        blob = base64.b64decode(ciphertext_b64, validate=True)
+    except Exception:
+        raise DecryptError("corrupt base64") from None
+    if len(blob) < 12:
+        raise DecryptError("corrupt: too short for nonce")
+    nonce = blob[:12]
+    ct = blob[12:]
+    aesgcm = AESGCM(key)
+    try:
+        pt = aesgcm.decrypt(nonce, ct, None)
+        return pt.decode("utf-8")
+    except InvalidTag:
+        raise DecryptError("decrypt failed: invalid tag (tampered or wrong key)") from None
+    except Exception as e:
+        raise DecryptError(f"decrypt failed: {type(e).__name__}") from None

backend/requirements.txt

@@ -3,4 +3,5 @@ fastapi==0.115.2
 uvicorn[standard]==0.30.6
 pytest==8.3.3
 httpx==0.27.2
+cryptography==43.0.1
 # stdlib only for sqlite3, logging, json, contextvars, threading

backend/settings.py

@@ -0,0 +1,130 @@
+"""S1 Settings service (DATA-MODEL §6, API.md §10, SETTINGS-5/15/20/25/30/75/85/90).
+
+Secrets (value_enc) are AES-GCM write-only; GET returns only {configured: bool}.
+woo_base_url is env read-only. Flags default false. Partial PUT. Decrypt fail -> configured:false (no 500, no leak).
+"""
+from __future__ import annotations
+
+import os
+from typing import Any
+
+from fastapi import HTTPException
+
+from .crypto import decrypt, encrypt, DecryptError
+from .db import get_connection
+
+SECRET_KEYS: set[str] = {
+    "woo_app_password",
+    "inference_base_url",
+    "inference_api_key",
+}
+PLAIN_KEYS: set[str] = {
+    "woo_wp_username",
+    "inference_model",
+    "inference_enabled",
+    "content_llm_enabled",
+    "brand_voice",
+    "geo_context",
+    "woo_create_status",
+    "taxonomy_last_sync_at",
+    "taxonomy_anchor",
+}
+ALL_KEYS = SECRET_KEYS | PLAIN_KEYS
+
+DEFAULTS: dict[str, Any] = {
+    "inference_enabled": False,
+    "content_llm_enabled": False,
+    "woo_create_status": "draft",
+}
+
+
+def _row_to_value(row: dict) -> Any:
+    if row is None:
+        return None
+    v = row.get("value")
+    if v is None:
+        return None
+    if isinstance(v, str):
+        if v.lower() in ("true", "false"):
+            return v.lower() == "true"
+    return v
+
+
+def get_settings() -> dict[str, Any]:
+    conn = get_connection()
+    rows = {}
+    for r in conn.execute("SELECT key, value, value_enc FROM settings").fetchall():
+        rows[r["key"]] = {"value": r["value"], "value_enc": r["value_enc"]}
+
+    result: dict[str, Any] = {}
+    result["woo_base_url"] = os.environ.get("WOO_BASE_URL", "")
+
+    for k in sorted(ALL_KEYS):
+        row = rows.get(k, {})
+        if k in SECRET_KEYS:
+            enc = row.get("value_enc")
+            if enc:
+                try:
+                    decrypt(enc)  # verify roundtrip possible
+                    result[k] = {"configured": True}
+                except Exception:
+                    result[k] = {"configured": False}
+            else:
+                result[k] = {"configured": False}
+        else:
+            if k in rows:
+                val = _row_to_value(row)
+                result[k] = val if val is not None else DEFAULTS.get(k)
+            else:
+                result[k] = DEFAULTS.get(k)
+
+    return result
+
+
+def update_settings(payload: dict[str, Any]) -> dict[str, Any]:
+    if "woo_base_url" in payload:
+        raise HTTPException(
+            status_code=400,
+            detail={
+                "error": {
+                    "code": "validation",
+                    "message": "woo_base_url is read-only (SETTINGS-85: env only)",
+                    "detail": {"field": "woo_base_url"},
+                }
+            },
+        )
+
+    conn = get_connection()
+    for k, v in payload.items():
+        if k not in ALL_KEYS:
+            continue  # ignore unknown for partial
+        if k in SECRET_KEYS:
+            if v in (None, "", False):
+                conn.execute(
+                    "INSERT OR REPLACE INTO settings(key, value, value_enc) VALUES (?,?,NULL)",
+                    (k, None),
+                )
+            else:
+                try:
+                    enc = encrypt(str(v))
+                except Exception:
+                    enc = None
+                conn.execute(
+                    "INSERT OR REPLACE INTO settings(key, value, value_enc) VALUES (?,?,?)",
+                    (k, None, enc),
+                )
+        else:
+            # plain
+            if v in (None, ""):
+                conn.execute("DELETE FROM settings WHERE key=?", (k,))
+            else:
+                if k in ("inference_enabled", "content_llm_enabled"):
+                    val_str = "true" if bool(v) else "false"
+                else:
+                    val_str = str(v)
+                conn.execute(
+                    "INSERT OR REPLACE INTO settings(key, value, value_enc) VALUES (?,?,NULL)",
+                    (k, val_str),
+                )
+    conn.commit()
+    return get_settings()

backend/tests/test_crypto.py

@@ -0,0 +1,52 @@
+"""TDD red tests for S1 crypto (QUALITY-125, SETTINGS-20/25)."""
+import base64
+import os
+import tempfile
+
+import pytest
+
+from backend import crypto
+
+
+def _valid_key_b64() -> str:
+    # 32 raw bytes base64
+    raw = b"0123456789abcdef0123456789abcdef"  # exactly 32
+    return base64.b64encode(raw).decode()
+
+
+def test_crypto_roundtrip_encrypt_decrypt(monkeypatch):
+    """Given: valid SLAB_AES_KEY; When: encrypt then decrypt; Then: original value (QUALITY-125)."""
+    key_b64 = _valid_key_b64()
+    monkeypatch.setenv("SLAB_AES_KEY", key_b64)
+    plaintext = "my-secret-app-password-123"
+    ct_b64 = crypto.encrypt(plaintext)
+    assert isinstance(ct_b64, str)
+    recovered = crypto.decrypt(ct_b64)
+    assert recovered == plaintext
+
+
+def test_crypto_decrypt_tampered_raises_clean_error(monkeypatch):
+    """Given: valid key; When: tamper the blob (flip a byte); Then: raises detectable error, no crash, no raw leak."""
+    key_b64 = _valid_key_b64()
+    monkeypatch.setenv("SLAB_AES_KEY", key_b64)
+    plaintext = "secret"
+    ct_b64 = crypto.encrypt(plaintext)
+    # tamper: flip last byte
+    blob = bytearray(base64.b64decode(ct_b64))
+    blob[-1] ^= 0xFF
+    tampered_b64 = base64.b64encode(blob).decode()
+    with pytest.raises(Exception) as exc:  # will be specific like InvalidTag or our wrapper
+        crypto.decrypt(tampered_b64)
+    # must not contain the raw blob or secret
+    msg = str(exc.value).lower()
+    assert "secret" not in msg
+    assert plaintext not in msg
+    # detectable, e.g. contains "decrypt" or "tag" or "corrupt"
+    assert any(k in msg for k in ("decrypt", "tag", "invalid", "corrupt", "fail"))
+
+
+def test_crypto_missing_key_raises(monkeypatch):
+    """Given: no SLAB_AES_KEY; When: encrypt; Then: clear runtime error."""
+    monkeypatch.delenv("SLAB_AES_KEY", raising=False)
+    with pytest.raises(RuntimeError, match="SLAB_AES_KEY"):
+        crypto.encrypt("x")

backend/tests/test_settings_api.py

@@ -0,0 +1,140 @@
+"""TDD red tests for S1 Settings API (SETTINGS-5,75,85,90, QUALITY-125, DATA-MODEL §6)."""
+import base64
+import json
+import os
+import tempfile
+
+import pytest
+from fastapi.testclient import TestClient
+
+import backend.db as db_mod
+
+
+def _valid_key_b64() -> str:
+    raw = b"0123456789abcdef0123456789abcdef"
+    return base64.b64encode(raw).decode()
+
+
+def _setup_env(monkeypatch, tmp):
+    db_path = os.path.join(tmp, "test.db")
+    img_dir = os.path.join(tmp, "images")
+    os.mkdir(img_dir)
+    monkeypatch.setenv("SLAB_DB_PATH", db_path)
+    monkeypatch.setenv("SLAB_IMAGES_DIR", img_dir)
+    monkeypatch.setenv("WOO_BASE_URL", "https://example.com")
+    monkeypatch.setenv("SLAB_AES_KEY", _valid_key_b64())
+    monkeypatch.setenv("LOG_LEVEL", "INFO")
+    db_mod._reset_for_tests()
+
+
+def test_settings_get_masks_secrets_and_shows_woo_base_url(monkeypatch):
+    """Given: some plain + secret settings; When: GET /api/v1/settings; Then: secrets only {configured:bool}, never value; woo_base_url from env (SETTINGS-5,75)."""
+    with tempfile.TemporaryDirectory() as tmp:
+        _setup_env(monkeypatch, tmp)
+        from backend.app import app
+        client = TestClient(app)
+        # seed some data via direct DB (will be replaced by service later)
+        conn = db_mod.get_connection()
+        db_mod.init_db()
+        conn.execute("INSERT OR REPLACE INTO settings(key, value) VALUES ('woo_wp_username', 'wpuser')")
+        conn.execute("INSERT OR REPLACE INTO settings(key, value_enc) VALUES ('woo_app_password', 'badbase64')")  # will be decrypt fail path
+        conn.execute("INSERT OR REPLACE INTO settings(key, value) VALUES ('inference_model', 'gpt-4o')")
+        conn.execute("INSERT OR REPLACE INTO settings(key, value) VALUES ('inference_enabled', 'true')")
+        conn.commit()
+        resp = client.get("/api/v1/settings")
+        assert resp.status_code == 200
+        body = resp.json()
+        assert body["woo_base_url"] == "https://example.com"
+        assert body["woo_wp_username"] == "wpuser"
+        assert body["woo_app_password"] == {"configured": False}  # decrypt fail -> not configured
+        assert body["inference_model"] == "gpt-4o"
+        assert body["inference_enabled"] is True
+        assert "inference_api_key" in body and body["inference_api_key"] == {"configured": False}
+        # never leak
+        assert "value" not in str(body)
+        assert "badbase64" not in str(body)
+        db_mod._reset_for_tests()
+
+
+def test_settings_put_rejects_woo_base_url(monkeypatch):
+    """Given: valid env; When: PUT /api/v1/settings with woo_base_url; Then: 400 validation (SETTINGS-85)."""
+    with tempfile.TemporaryDirectory() as tmp:
+        _setup_env(monkeypatch, tmp)
+        from backend.app import app
+        client = TestClient(app)
+        db_mod.init_db()
+        resp = client.put("/api/v1/settings", json={"woo_base_url": "https://evil.com"})
+        assert resp.status_code == 400
+        err = resp.json()["error"]
+        assert err["code"] == "validation"
+        assert "woo_base_url" in err["message"].lower()
+        db_mod._reset_for_tests()
+
+
+def test_settings_put_stores_encrypted_secrets(monkeypatch):
+    """Given: secret in PUT; When: PUT; Then: value_enc is base64 nonce||ct (not plaintext), plain fields direct (SETTINGS-20)."""
+    with tempfile.TemporaryDirectory() as tmp:
+        _setup_env(monkeypatch, tmp)
+        from backend.app import app
+        client = TestClient(app)
+        db_mod.init_db()
+        payload = {
+            "woo_app_password": "super-secret-pass",
+            "inference_base_url": "https://api.openai.com/v1",
+            "inference_api_key": "sk-xxx",
+            "inference_model": "gpt-4o-mini",
+            "inference_enabled": True,
+            "content_llm_enabled": False,
+            "brand_voice": "professional",
+            "geo_context": "PNW",
+            "woo_create_status": "draft",
+        }
+        resp = client.put("/api/v1/settings", json=payload)
+        assert resp.status_code == 200
+        # check DB
+        conn = db_mod.get_connection()
+        rows = {r["key"]: (r["value"], r["value_enc"]) for r in conn.execute("SELECT key, value, value_enc FROM settings").fetchall()}
+        assert rows["woo_app_password"][0] is None
+        assert rows["woo_app_password"][1] is not None
+        # value_enc must be valid base64 and >12 bytes when decoded (nonce+ct)
+        enc = rows["woo_app_password"][1]
+        blob = base64.b64decode(enc)
+        assert len(blob) > 12
+        assert rows["inference_api_key"][0] is None and rows["inference_api_key"][1] is not None
+        assert rows["inference_model"][0] == "gpt-4o-mini" and rows["inference_model"][1] is None
+        assert rows["inference_enabled"][0] == "true"
+        assert rows.get("content_llm_enabled", (None, None))[0] == "false"
+        db_mod._reset_for_tests()
+
+
+def test_settings_flags_default_false_when_absent(monkeypatch):
+    """Given: no flag rows; When: GET; Then: inference_enabled/content_llm_enabled == false (SETTINGS-90)."""
+    with tempfile.TemporaryDirectory() as tmp:
+        _setup_env(monkeypatch, tmp)
+        from backend.app import app
+        client = TestClient(app)
+        db_mod.init_db()
+        resp = client.get("/api/v1/settings")
+        assert resp.status_code == 200
+        body = resp.json()
+        assert body["inference_enabled"] is False
+        assert body["content_llm_enabled"] is False
+        db_mod._reset_for_tests()
+
+
+def test_settings_decrypt_failure_returns_reenter_state_not_500(monkeypatch):
+    """Given: corrupt value_enc for secret; When: GET; Then: configured:false, 200 not 500 (SETTINGS-20/15 spirit)."""
+    with tempfile.TemporaryDirectory() as tmp:
+        _setup_env(monkeypatch, tmp)
+        from backend.app import app
+        client = TestClient(app)
+        db_mod.init_db()
+        conn = db_mod.get_connection()
+        # insert corrupt (not even base64 or short)
+        conn.execute("INSERT OR REPLACE INTO settings(key, value_enc) VALUES ('inference_api_key', '!!!notbase64!!!')")
+        conn.commit()
+        resp = client.get("/api/v1/settings")
+        assert resp.status_code == 200  # not 500
+        body = resp.json()
+        assert body["inference_api_key"] == {"configured": False}
+        db_mod._reset_for_tests()

frontend/src/App.svelte

@@ -3,12 +3,13 @@
   import { supported } from './browser';
   import { createCaptureSession, type CaptureSession } from './capture/session';
   import type { Capture } from './capture/capture.types';
-  import Resume from './capture/Resume.svelte';
-  import BatchPhotos from './capture/BatchPhotos.svelte';
-  import PickCalibration from './capture/PickCalibration.svelte';
-  import MaskPanel from './capture/MaskPanel.svelte';
-  import AxisPanel from './capture/AxisPanel.svelte';
-  import MeasurePanel from './capture/MeasurePanel.svelte';
+import Resume from './capture/Resume.svelte';
+import BatchPhotos from './capture/BatchPhotos.svelte';
+import PickCalibration from './capture/PickCalibration.svelte';
+import MaskPanel from './capture/MaskPanel.svelte';
+import AxisPanel from './capture/AxisPanel.svelte';
+import MeasurePanel from './capture/MeasurePanel.svelte';
+import Settings from './create/settings/Settings.svelte';
 
   const gate = typeof window !== 'undefined' ? supported() : 'window unavailable';
   const session: CaptureSession = createCaptureSession();
@@ -16,6 +17,7 @@
   let cap: Capture = { k: 'batch', photos: [] };
   let busy = false;
   let pngUrl: string | null = null;
+  let showSettings = false;
 
   const unsubCap = session.capture.subscribe((c) => {
     cap = c;
@@ -88,6 +90,10 @@
         {pngUrl}
       />
     {/if}
+    <button on:click={() => (showSettings = !showSettings)} style="margin-top:1rem">Settings (dev)</button>
+    {#if showSettings}
+      <Settings />
+    {/if}
   </main>
 {/if}
 

frontend/src/create/settings/Settings.svelte

@@ -0,0 +1,170 @@
+<script lang="ts">
+  import { onMount } from 'svelte';
+
+  interface SecretState { configured: boolean }
+  interface Settings {
+    woo_base_url: string;
+    woo_wp_username: string | null;
+    woo_app_password: SecretState;
+    inference_base_url: SecretState;
+    inference_api_key: SecretState;
+    inference_model: string | null;
+    inference_enabled: boolean;
+    content_llm_enabled: boolean;
+    brand_voice: string | null;
+    geo_context: string | null;
+    woo_create_status: string | null;
+  }
+
+  let settings: Settings | null = null;
+  let loading = true;
+  let saving = false;
+  let message = '';
+
+  // local edit buffers (write-only for secrets)
+  let form: any = {};
+
+  async function load() {
+    loading = true;
+    try {
+      const res = await fetch('/api/v1/settings');
+      if (res.ok) {
+        settings = await res.json();
+        // init form with current plain values
+        form = {
+          woo_wp_username: settings.woo_wp_username || '',
+          inference_model: settings.inference_model || '',
+          inference_enabled: settings.inference_enabled,
+          content_llm_enabled: settings.content_llm_enabled,
+          brand_voice: settings.brand_voice || '',
+          geo_context: settings.geo_context || '',
+          woo_create_status: settings.woo_create_status || 'draft',
+          // secrets: only send if user types
+          woo_app_password: '',
+          inference_base_url: '',
+          inference_api_key: '',
+        };
+      }
+    } catch (e) {
+      message = 'Failed to load settings';
+    }
+    loading = false;
+  }
+
+  async function save() {
+    saving = true;
+    message = '';
+    const payload: any = {};
+    // only include changed / non-empty
+    if (form.woo_wp_username !== (settings?.woo_wp_username || '')) payload.woo_wp_username = form.woo_wp_username || null;
+    if (form.inference_model !== (settings?.inference_model || '')) payload.inference_model = form.inference_model || null;
+    if (form.inference_enabled !== settings?.inference_enabled) payload.inference_enabled = form.inference_enabled;
+    if (form.content_llm_enabled !== settings?.content_llm_enabled) payload.content_llm_enabled = form.content_llm_enabled;
+    if (form.brand_voice !== (settings?.brand_voice || '')) payload.brand_voice = form.brand_voice || null;
+    if (form.geo_context !== (settings?.geo_context || '')) payload.geo_context = form.geo_context || null;
+    if (form.woo_create_status !== (settings?.woo_create_status || 'draft')) payload.woo_create_status = form.woo_create_status;
+    // secrets only if provided (write-only)
+    if (form.woo_app_password) payload.woo_app_password = form.woo_app_password;
+    if (form.inference_base_url) payload.inference_base_url = form.inference_base_url;
+    if (form.inference_api_key) payload.inference_api_key = form.inference_api_key;
+
+    try {
+      const res = await fetch('/api/v1/settings', {
+        method: 'PUT',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify(payload),
+      });
+      if (res.ok) {
+        settings = await res.json();
+        message = 'Saved';
+        // clear secret inputs after save
+        form.woo_app_password = '';
+        form.inference_base_url = '';
+        form.inference_api_key = '';
+      } else {
+        const err = await res.json();
+        message = err.error?.message || 'Save failed';
+      }
+    } catch (e) {
+      message = 'Network error';
+    }
+    saving = false;
+  }
+
+  onMount(() => {
+    void load();
+  });
+</script>
+
+<div class="settings">
+  <h2>Settings</h2>
+  {#if loading}
+    <p>Loading...</p>
+  {:else if settings}
+    <div>
+      <label>Woo Base URL (read-only, from env)</label>
+      <input type="text" value={settings.woo_base_url} disabled />
+    </div>
+
+    <div>
+      <label>WP Username</label>
+      <input bind:value={form.woo_wp_username} />
+    </div>
+
+    <div>
+      <label>Woo App Password {settings.woo_app_password.configured ? '(configured)' : '(not set)'}</label>
+      <input type="password" bind:value={form.woo_app_password} placeholder={settings.woo_app_password.configured ? '••••••••' : ''} />
+    </div>
+
+    <div>
+      <label>Inference Base URL {settings.inference_base_url.configured ? '(configured)' : '(not set)'}</label>
+      <input bind:value={form.inference_base_url} placeholder={settings.inference_base_url.configured ? '••••••••' : ''} />
+    </div>
+
+    <div>
+      <label>Inference API Key {settings.inference_api_key.configured ? '(configured)' : '(not set)'}</label>
+      <input type="password" bind:value={form.inference_api_key} placeholder={settings.inference_api_key.configured ? '••••••••' : ''} />
+    </div>
+
+    <div>
+      <label>Inference Model</label>
+      <input bind:value={form.inference_model} />
+    </div>
+
+    <div>
+      <label><input type="checkbox" bind:checked={form.inference_enabled} /> Inference Enabled (default false)</label>
+    </div>
+
+    <div>
+      <label><input type="checkbox" bind:checked={form.content_llm_enabled} /> Content LLM Enabled (default false)</label>
+    </div>
+
+    <div>
+      <label>Brand Voice</label>
+      <input bind:value={form.brand_voice} />
+    </div>
+
+    <div>
+      <label>Geo Context</label>
+      <input bind:value={form.geo_context} />
+    </div>
+
+    <div>
+      <label>Woo Create Status</label>
+      <select bind:value={form.woo_create_status}>
+        <option value="draft">draft</option>
+        <option value="publish">publish</option>
+      </select>
+    </div>
+
+    <button on:click={save} disabled={saving}>Save Changes</button>
+    {#if message}<p class="msg">{message}</p>{/if}
+  {/if}
+</div>
+
+<style>
+  .settings { max-width: 600px; }
+  label { display: block; margin: 8px 0 4px; }
+  input, select { width: 100%; padding: 6px; }
+  button { margin-top: 16px; }
+</style>