The SQLite era is gone (on PostgreSQL since 2026-09-28; no compatibility kept): the one-time migrate-to-postgres script, *_DB_PATH settings (config, .env.example, systemd unit, test helpers), the unused better-sqlite3 dependency and its lockfile entries, and docs, docstrings and STATUS lines about SQLite or its rollback window. Reviewed independently; its blockers (an edited applied migration, the lockfile) are resolved here, Host's inventory follow-up is separate. npm test 23/23 test files passed.

ddiff --git a/.env.example b/.env.example
iindex c1c8b03..5456df0 100644
---- a/.env.example
++++ b/.env.example
@@@ -10,16 +10,13 @@ HOST=127.0.0.1
  NODE_ENV=development
  BASE_URL=http://localhost:4700
  
--# SQLite (production unit: /var/lib/openvibe-ai/ai.db via StateDirectory=openvibe-ai)
  # PostgreSQL (ADR-035), written by OpenVibe.Host roles/data/add-service.sh ai: the runtime role through PgBouncer,
--# the owner on a direct connection (migrations and the one-time import), and Valkey (shared limit counters).
++# the owner on a direct connection (migrations), and Valkey (shared limit counters).
  # Without DATABASE_URL, development uses an embedded PGlite database in data/pglite.
  DATABASE_URL=
  DATABASE_DIRECT_URL=
  VALKEY_URL=
  VALKEY_PREFIX=
--# The SQLite file of releases before PostgreSQL: read once by scripts/migrate-to-postgres.js.
--AI_DB_PATH=./data/ai.db
  
  # Identity: OpenVibe.Network signs the service tokens callers present (audience openvibe.ai).
  # The public key is fetched from <Network>/api/.well-known/jwks; OV_NETWORK_PUBLIC_KEY pins a PEM instead.
@@@ -52,8 +49,7 @@ OV_NETWORK_INTERNAL_URL=http://127.0.0.1:4000
  
  # ── The shared provider — the same names as OpenVibe.Live's admin AI settings ──
  # (ai_enabled, ai_provider, ai_base_url, ai_api_key, ai_model, ai_model_<role>, ai_pricing_json,
--#  ai_input/output_cost_per_mtok, ai_max_cost_usd_per_day). scripts/import-from-live.js prints the
--#  values Live had (never the key).
++#  ai_input/output_cost_per_mtok, ai_max_cost_usd_per_day).
  #AI_ENABLED=true
  # anthropic | openai | openrouter | groq | ollama | (blank = OpenAI-shaped). Anthropic only when
  # AI_BASE_URL is blank or anthropic.com; any other base URL is treated as OpenAI-compatible.
@@@ -92,7 +88,7 @@ AI_MODEL=
  #AI_LOCAL_LLM_MODEL=qwen2.5-1.5b-instruct
  #AI_LOCAL_LLM_TIMEOUT_MS=180000
  # media.analyze: file cap (also bounded by free temp disk minus the reserve), download timeout, scene threshold
--#AI_MEDIA_ANALYSIS_DIR=/var/lib/openvibe-ai/media-tmp   (default: media-tmp beside AI_DB_PATH; never a tmpfs)
++#AI_MEDIA_ANALYSIS_DIR=/var/lib/openvibe-ai/media-tmp   (default: data/media-tmp; never a tmpfs)
  #AI_MEDIA_ANALYSIS_MAX_BYTES=4294967296
  #AI_MEDIA_ANALYSIS_DISK_RESERVE_BYTES=3221225472
  #AI_MEDIA_ANALYSIS_FETCH_TIMEOUT_MS=1200000
ddiff --git a/README.md b/README.md
iindex 1213364..826a5de 100644
---- a/README.md
++++ b/README.md
@@@ -315,15 +315,13 @@ Production deploys with `sudo ovhost deploy ai` on the host (strategy `git-check
  fast-forward `/opt/openvibe.ai`, install on a lockfile change, restart, wait for `/api/ready`).
  The unit is `openvibe-ai.service` on `127.0.0.1:4700`, the env file `/etc/openvibe/ai.env`. The database is
  `ov_ai` on the host's data role (`sudo /opt/openvibe.host/roles/data/add-service.sh ai` writes its settings); the
--release migrates it at boot. The one-time move from SQLite is `scripts/migrate-to-postgres.js` (openvibe-sdk
--`runSqliteMigration`, with a `--pglite` rehearsal mode), run while the service is stopped; the old
--`/var/lib/openvibe-ai/ai.db` stays read-only for 7 days as the rollback. The local model
++release migrates it at boot. The local model
  runs as `openvibe-llm.service` on 127.0.0.1:8090 ([Local model](#local-model)).
  Rollback: ovhost puts the previous sha back by itself when `/api/ready` does not answer 2xx after the
  restart; afterwards `sudo ovhost rollback ai --to <sha>`. Migrations only add tables and columns.
  
  Deployed: `/opt/openvibe.ai`, env `/etc/openvibe/ai.env` (0600), unit `deploy/systemd/openvibe-ai.service`
--(`StateDirectory=openvibe-ai`; database `ov_ai` on the host's data role, the SQLite file `/var/lib/openvibe-ai/ai.db` before the switch), principal `ai`. The nginx vhost
++(`StateDirectory=openvibe-ai`; database `ov_ai` on the host's data role), principal `ai`. The nginx vhost
  `deploy/nginx/ai.openvibe.network.conf` (health/ready, `/`, `/robots.txt`, the operator console
  `/console` and its sign-in `/auth/` public; the API is host-local) is not installed:
  `ai.openvibe.network` still serves the Sites placeholder. The console also needs
@@@ -345,7 +343,7 @@ Deployed: `/opt/openvibe.ai`, env `/etc/openvibe/ai.env` (0600), unit `deploy/sy
  - No fallback is declared on any production route, so an outage of the one real provider fails every
    Live AI feature. On 2026-09-23 `live.*` and `network.site_copy` outputs carried no citations or gaps
    (0 citation rows); runs record grounding (cited sources and named gaps) since 2026-09-25.
--- The host has a backup of `ai.db` but no restore drill has run for it; `/metrics` is built but not
++- The host has a backup of `ov_ai` but no restore drill has run for it; `/metrics` is built but not
    deployed yet.
  
  ## Launch rule
ddiff --git a/STATUS.json b/STATUS.json
iindex 70d7e04..fef61cd 100644
---- a/STATUS.json
++++ b/STATUS.json
@@@ -4,7 +4,7 @@
    "code": true,
    "wave": "W13",
    "plan": "OpenVibe End-to-End Realignment & Implementation Plan, revision 3 (20 Sep 2026)",
--  "runtime": "node 22, express, better-sqlite3",
++  "runtime": "node 22, express, postgresql",
    "port": 4700,
    "domain": "ai.openvibe.network still serves the OpenVibe.Sites placeholder; the service runs on openvibe-ovh (/opt/openvibe.ai, unit openvibe-ai) on 127.0.0.1:4700, loopback only, used by OpenVibe.Live and OpenVibe.Network",
    "contracts": "openvibe-contracts v0.76.0",
ddiff --git a/deploy/systemd/openvibe-ai.service b/deploy/systemd/openvibe-ai.service
iindex 8047244..85e876a 100644
---- a/deploy/systemd/openvibe-ai.service
++++ b/deploy/systemd/openvibe-ai.service
@@@ -26,9 +26,10 @@ ProtectSystem=strict
  ProtectHome=read-only
  # whisper.cpp (live.media.transcribe) runs as a child process; it reads its binary and models from
  # WHISPER_BIN / WHISPER_MODEL* (defaults under ~/whisper.cpp, readable with ProtectHome=read-only).
--# The code tree stays read-only; the database lives in /var/lib/openvibe-ai.
++# The code tree stays read-only; the media work directory lives in /var/lib/openvibe-ai.
  StateDirectory=openvibe-ai
--Environment=AI_DB_PATH=/var/lib/openvibe-ai/ai.db
++# media.analyze's work directory under StateDirectory (writable; the code tree is read-only).
++Environment=AI_MEDIA_ANALYSIS_DIR=/var/lib/openvibe-ai/media-tmp
  
  [Install]
  WantedBy=multi-user.target
ddiff --git a/package-lock.json b/package-lock.json
iindex 09de8a3..2a29880 100644
---- a/package-lock.json
++++ b/package-lock.json
@@@ -10,7 +10,6 @@
        "license": "AGPL-3.0-only",
        "dependencies": {
          "ajv": "^8.17.1",
--        "better-sqlite3": "^11.10.0",
          "dotenv": "^16.4.7",
          "express": "^4.21.2",
          "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.76.0",
@@@ -476,7 +475,9 @@
            "url": "https://feross.org/support"
          }
        ],
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/better-sqlite3": {
        "version": "11.10.0",
@@@ -484,6 +485,8 @@
        "integrity": "sha512-EwhOpyXiOEL/lKzHz9AW1msWFNzGc/z+LzeB3/jnFJpxu+th2yqvzsSWas1v9jgs9+xiXJcD5A8CJxAG2TaghQ==",
        "hasInstallScript": true,
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "bindings": "^1.5.0",
          "prebuild-install": "^7.1.1"
@@@ -494,6 +497,8 @@
        "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
        "integrity": "sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "file-uri-to-path": "1.0.0"
        }
@@@ -503,6 +508,8 @@
        "resolved": "https://registry.npmjs.org/bl/-/bl-4.1.0.tgz",
        "integrity": "sha512-1W07cM9gS6DcLperZfFSj+bWLtaPGSOHWhPiGzXmvVJbRLdG82sH/Kn8EtW1VqWVA54AKf2h5k5BbnIbwF3h6w==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "buffer": "^5.5.0",
          "inherits": "^2.0.4",
@@@ -552,6 +559,8 @@
          }
        ],
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "base64-js": "^1.3.1",
          "ieee754": "^1.1.13"
@@@ -605,7 +614,9 @@
        "version": "1.1.4",
        "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz",
        "integrity": "sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==",
--      "license": "ISC"
++      "license": "ISC",
++      "optional": true,
++      "peer": true
      },
      "node_modules/color": {
        "version": "4.2.3",
@@@ -702,6 +713,8 @@
        "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-6.0.0.tgz",
        "integrity": "sha512-aW35yZM6Bb/4oJlZncMH2LCoZtJXTRxES17vE3hoRiowU2kWHaJKFkSBDnDR+cm9J+9QhXmREyIfv0pji9ejCQ==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "mimic-response": "^3.1.0"
        },
@@@ -717,6 +730,8 @@
        "resolved": "https://registry.npmjs.org/deep-extend/-/deep-extend-0.6.0.tgz",
        "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "engines": {
          "node": ">=4.0.0"
        }
@@@ -745,6 +760,7 @@
        "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.1.2.tgz",
        "integrity": "sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==",
        "license": "Apache-2.0",
++      "optional": true,
        "engines": {
          "node": ">=8"
        }
@@@ -804,6 +820,8 @@
        "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.5.tgz",
        "integrity": "sha512-ooEGc6HP26xXq/N+GCGOT0JKCLDGrq2bQUZrQ7gyrJiZANJ/8YDTxTpQBXGMn+WbIQXNVpyWymm7KYVICQnyOg==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "once": "^1.4.0"
        }
@@@ -858,6 +876,8 @@
        "resolved": "https://registry.npmjs.org/expand-template/-/expand-template-2.0.3.tgz",
        "integrity": "sha512-XYfuKMvj4O35f/pOXLObndIRvyQ+/+6AhODh+OKWj9S9498pHHn/IMszH+gt0fBCRWMNfk1ZSp5x3AifmnI2vg==",
        "license": "(MIT OR WTFPL)",
++      "optional": true,
++      "peer": true,
        "engines": {
          "node": ">=6"
        }
@@@ -934,7 +954,9 @@
        "version": "1.0.0",
        "resolved": "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz",
        "integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/finalhandler": {
        "version": "1.3.2",
@@@ -976,7 +998,9 @@
        "version": "1.0.0",
        "resolved": "https://registry.npmjs.org/fs-constants/-/fs-constants-1.0.0.tgz",
        "integrity": "sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/function-bind": {
        "version": "1.1.2",
@@@ -1028,7 +1052,9 @@
        "version": "0.0.0",
        "resolved": "https://registry.npmjs.org/github-from-package/-/github-from-package-0.0.0.tgz",
        "integrity": "sha512-SyHy3T1v2NUXn29OsWdxmK6RwHD+vkj3v8en8AOBZ1wBQ/hCAQ5bAQTD02kW4W9tUp/3Qh6J8r9EvntiyCmOOw==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/gopd": {
        "version": "1.2.0",
@@@ -1116,7 +1142,9 @@
            "url": "https://feross.org/support"
          }
        ],
--      "license": "BSD-3-Clause"
++      "license": "BSD-3-Clause",
++      "optional": true,
++      "peer": true
      },
      "node_modules/inherits": {
        "version": "2.0.4",
@@@ -1128,7 +1156,9 @@
        "version": "1.3.8",
        "resolved": "https://registry.npmjs.org/ini/-/ini-1.3.8.tgz",
        "integrity": "sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==",
--      "license": "ISC"
++      "license": "ISC",
++      "optional": true,
++      "peer": true
      },
      "node_modules/ipaddr.js": {
        "version": "1.9.1",
@@@ -1317,6 +1347,8 @@
        "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-3.1.0.tgz",
        "integrity": "sha512-z0yWI+4FDrrweS8Zmt4Ej5HdJmky15+L2e6Wgn3+iK5fWzb6T3fhNFq2+MeTRb064c6Wr4N/wv0DzQTjNzHNGQ==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "engines": {
          "node": ">=10"
        },
@@@ -1329,6 +1361,8 @@
        "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
        "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "funding": {
          "url": "https://github.com/sponsors/ljharb"
        }
@@@ -1337,7 +1371,9 @@
        "version": "0.5.3",
        "resolved": "https://registry.npmjs.org/mkdirp-classic/-/mkdirp-classic-0.5.3.tgz",
        "integrity": "sha512-gKLcREMhtuZRwRAfqP3RFW+TK4JqApVBtOIftVgjuABpAtpxhPGaDcfvbhNvD0B8iD1oUr/txX35NjcaY6Ns/A==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/ms": {
        "version": "2.0.0",
@@@ -1349,7 +1385,9 @@
        "version": "2.0.0",
        "resolved": "https://registry.npmjs.org/napi-build-utils/-/napi-build-utils-2.0.0.tgz",
        "integrity": "sha512-GEbrYkbfF7MoNaoh2iGG84Mnf/WZfB0GdGEsM8wz7Expx/LlWf5U8t9nvJKXSp3qr5IsEbK04cBGhol/KwOsWA==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/negotiator": {
        "version": "0.6.3",
@@@ -1365,6 +1403,8 @@
        "resolved": "https://registry.npmjs.org/node-abi/-/node-abi-3.96.0.tgz",
        "integrity": "sha512-rebQ/lz7i0EkoLzUVSrKRzA69zMkwLp95kKMWoMDkkM00Suxz0D7zEQPwRml5fQum24mj7bPvmlgLAmu2JCiYg==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "semver": "^7.3.5"
        },
@@@ -1401,6 +1441,8 @@
        "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
        "integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
        "license": "ISC",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "wrappy": "1"
        }
@@@ -1608,6 +1650,8 @@
        "integrity": "sha512-8Mf2cbV7x1cXPUILADGI3wuhfqWvtiLA1iclTDbFRZkgRQS0NqsPZphna9V+HyTEadheuPmjaJMsbzKQFOzLug==",
        "deprecated": "No longer maintained. Please contact the author of the relevant native addon; alternatives are available.",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "detect-libc": "^2.0.0",
          "expand-template": "^2.0.3",
@@@ -1651,6 +1695,8 @@
        "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.4.tgz",
        "integrity": "sha512-VS7sjc6KR7e1ukRFhQSY5LM2uBWAUPiOPa/A3mkKmiMwSmRFUITt0xuj+/lesgnCv+dPIEYlkzrcyXgquIHMcA==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "end-of-stream": "^1.1.0",
          "once": "^1.3.1"
@@@ -1701,6 +1747,8 @@
        "resolved": "https://registry.npmjs.org/rc/-/rc-1.2.8.tgz",
        "integrity": "sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==",
        "license": "(BSD-2-Clause OR MIT OR Apache-2.0)",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "deep-extend": "^0.6.0",
          "ini": "~1.3.0",
@@@ -1716,6 +1764,8 @@
        "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
        "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "inherits": "^2.0.3",
          "string_decoder": "^1.1.1",
@@@ -1953,7 +2003,9 @@
            "url": "https://feross.org/support"
          }
        ],
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/simple-get": {
        "version": "4.0.1",
@@@ -1974,6 +2026,8 @@
          }
        ],
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "decompress-response": "^6.0.0",
          "once": "^1.3.1",
@@@ -2013,6 +2067,8 @@
        "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
        "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "safe-buffer": "~5.2.0"
        }
@@@ -2022,6 +2078,8 @@
        "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
        "integrity": "sha512-4gB8na07fecVVkOI6Rs4e7T6NOTki5EmL7TUduTs6bu3EdnSycntVJ4re8kgZA+wx9IueI2Y11bfbgwtzuE0KQ==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "engines": {
          "node": ">=0.10.0"
        }
@@@ -2031,6 +2089,8 @@
        "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.5.tgz",
        "integrity": "sha512-OboTd8mmMhZDNPV+UjQcK9yKAatXu2aJ+r1w4im1Otd4M4fl2hwvdoXUxIYHFTHWK/3y3FarBP70v3vwmGlOxw==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "chownr": "^1.1.1",
          "mkdirp-classic": "^0.5.2",
@@@ -2043,6 +2103,8 @@
        "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-2.2.0.tgz",
        "integrity": "sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==",
        "license": "MIT",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "bl": "^4.0.3",
          "end-of-stream": "^1.4.1",
@@@ -2075,6 +2137,8 @@
        "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
        "integrity": "sha512-McnNiV1l8RYeY8tBgEpuodCC1mLUdbSN+CYBL7kJsJNInOP8UjDDEwdk6Mw60vdLLrr5NHKZhMAOSrR2NZuQ+w==",
        "license": "Apache-2.0",
++      "optional": true,
++      "peer": true,
        "dependencies": {
          "safe-buffer": "^5.0.1"
        },
@@@ -2108,7 +2172,9 @@
        "version": "1.0.2",
        "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
        "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
--      "license": "MIT"
++      "license": "MIT",
++      "optional": true,
++      "peer": true
      },
      "node_modules/utils-merge": {
        "version": "1.0.1",
@@@ -2132,7 +2198,9 @@
        "version": "1.0.2",
        "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
        "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
--      "license": "ISC"
++      "license": "ISC",
++      "optional": true,
++      "peer": true
      },
      "node_modules/xtend": {
        "version": "4.0.2",
ddiff --git a/package.json b/package.json
iindex 60db6cd..0db6617 100644
---- a/package.json
++++ b/package.json
@@@ -22,7 +22,6 @@
    "repository": "github:OpenVibers/OpenVibe.AI",
    "dependencies": {
      "ajv": "^8.17.1",
--    "better-sqlite3": "^11.10.0",
      "dotenv": "^16.4.7",
      "express": "^4.21.2",
      "openvibe-contracts": "https://codeload.github.com/OpenVibers/OpenVibe.Contracts/tar.gz/refs/tags/v0.76.0",
ddiff --git a/scripts/migrate-to-postgres.js b/scripts/migrate-to-postgres.js
ddeleted file mode 100644
iindex f1b6bf8..0000000
---- a/scripts/migrate-to-postgres.js
++++ /dev/null
@@@ -1,26 +0,0 @@
--#!/usr/bin/env node
--'use strict';
--/**
-- * The one-time move of AI's SQLite database (AI_DB_PATH) into its PostgreSQL schema (ADR-035; the procedure is
-- * openvibe-sdk docs/migrating-to-postgresql.md, section 6, carried out by openvibe-sdk/db runSqliteMigration).
-- *
-- *   node scripts/migrate-to-postgres.js [--sqlite <file>] [--pglite] [--json]
-- *
-- * Applies migrations/ as the owner (DATABASE_DIRECT_URL), copies every table into emptied tables, verifies row counts
-- * and checksums, and exits 1 unless everything verified. The SQLite file is opened read-only. Every table keeps its
-- * name and columns.
-- */
--require('dotenv').config();
--const { runSqliteMigration } = require('openvibe-sdk/db');
--const configLib = require('../server/config');
--const { MIGRATIONS } = require('../server/db');
--
--const TABLES = {};
--
--if (require.main === module) {
--    const config = (configLib.load || configLib.loadConfig)();
--    runSqliteMigration({ service: 'ai', sqlite: config.dbPath, directUrl: config.db.directUrl, migrations: MIGRATIONS, tables: TABLES })
--        .then((code) => process.exit(code), (err) => { console.error(`migrate-to-postgres failed: ${err.message}`); process.exit(1); });
--}
--
--module.exports = { TABLES };
ddiff --git a/server/config.js b/server/config.js
iindex 9d43e3b..1285e60 100644
---- a/server/config.js
++++ b/server/config.js
@@@ -61,8 +61,6 @@ function load(env = process.env) {
  
          // PostgreSQL (ADR-035): DATABASE_URL serves (PgBouncer), DATABASE_DIRECT_URL migrates (owner role).
          db: { url: env.DATABASE_URL || '', directUrl: env.DATABASE_DIRECT_URL || '' },
--        // The SQLite file of releases before the switch: read once by scripts/migrate-to-postgres.js.
--        dbPath: env.AI_DB_PATH || './data/ai.db',
  
          // ── Operator console (server/console): OpenVibe.Network SSO (authorization code + PKCE S256
          // as OAuth client `ai`), for Network staff only (README "Operator console"). Both secrets are
@@@ -107,8 +105,8 @@ function load(env = process.env) {
          // media.analyze (server/workflows/media-analysis.js): the file cap (also bounded by free disk minus a reserve),
          // the download timeout, the scene-change threshold (scdet, 0-100) and the tools.
          mediaAnalysis: {
--            // On disk beside the database, not os.tmpdir(): a tmpfs /tmp is memory, and a VOD is gigabytes.
--            workDir: env.AI_MEDIA_ANALYSIS_DIR || require('path').join(require('path').dirname(env.AI_DB_PATH || './data/ai.db'), 'media-tmp'),
++            // On disk under the service's data directory, not os.tmpdir(): a tmpfs /tmp is memory, and a VOD is gigabytes.
++            workDir: env.AI_MEDIA_ANALYSIS_DIR || 'data/media-tmp',
              maxBytes: int(env.AI_MEDIA_ANALYSIS_MAX_BYTES, 4 * 1024 * 1024 * 1024),
              reserveBytes: int(env.AI_MEDIA_ANALYSIS_DISK_RESERVE_BYTES, 3 * 1024 * 1024 * 1024),
              fetchTimeoutMs: int(env.AI_MEDIA_ANALYSIS_FETCH_TIMEOUT_MS, 20 * 60000),
ddiff --git a/server/index.js b/server/index.js
iindex 3df1932..83cf9bf 100644
---- a/server/index.js
++++ b/server/index.js
@@@ -36,7 +36,6 @@ async function start({ config, db: givenDb = null, clock = { now: () => Date.now
      require('./events').init(db, { log });
      // ai.preferences (read) and ai.usage_summary (written): Network user modules (server/user-modules.js).
      const userModules = require('./user-modules').createUserModules({ db, config, env, fetchImpl, clock, log });
--    userModules.ensureSchema();
      // A person's own provider keys (WS-O task 2): stored by the service holding their consent, used by their runs only.
      const credentials = require('./credentials').createCredentials({ db, config, clock });
      const runs = createRuns({ db, registry, engine, cache, quotas, config, clock, log, userModules, credentials });
ddiff --git a/server/observability.js b/server/observability.js
iindex d11535e..6917e26 100644
---- a/server/observability.js
++++ b/server/observability.js
@@@ -3,7 +3,7 @@
   * Track O: truthful readiness for GET /api/ready and the AI gauges on GET /metrics
   * (openvibe-shared/ready and openvibe-shared/metrics).
   *
-- *   db            required  a real query on AI's SQLite (the provider registry answers)
++ *   db            required  a real query on AI's PostgreSQL database (the provider registry answers)
   *   workflows     required  at least one active workflow: without one there is nothing to run
   *   network_jwks  required  the Network signing key has loaded. Every endpoint but health/ready
   *                           needs a verified service token, so without it AI serves nothing
ddiff --git a/server/user-modules.js b/server/user-modules.js
iindex 217ffbf..24928a8 100644
---- a/server/user-modules.js
++++ b/server/user-modules.js
@@@ -66,10 +66,6 @@ function createUserModules({ db, config, env = process.env, fetchImpl = globalTh
          return data;
      }
  
--    function ensureSchema() {
--        // ai_module_pushes is in migrations/0001_initial.sql (ADR-035).
--    }
--
      /** ai.usage_summary for one person over the 30 days before now, or null when there were no runs. */
      async function summarize(subject, now = clock.now()) {
          const since = new Date(now - 30 * DAY_MS).toISOString();
@@@ -130,7 +126,6 @@ function createUserModules({ db, config, env = process.env, fetchImpl = globalTh
  
      function start() {
          if (!enabled || timers.length) return false;
--        ensureSchema();
          const safe = (fn) => () => { fn().catch((err) => { stats.lastError = err.message; }); };
          timers = [setInterval(safe(async () => await scan()), 5 * 60 * 1000), setInterval(safe(async () => await refresh()), DAY_MS), setTimeout(safe(async () => await refresh()), 3 * 60 * 1000)];
          for (const t of timers) t.unref?.();
@@@ -138,7 +133,7 @@ function createUserModules({ db, config, env = process.env, fetchImpl = globalTh
      }
      function stop() { for (const t of timers) { clearInterval(t); clearTimeout(t); } timers = []; }
  
--    return { enabled, preferencesFor, ensureSchema, summarize, push, scan, refresh, start, stop, stats: () => ({ enabled, ...stats }) };
++    return { enabled, preferencesFor, summarize, push, scan, refresh, start, stop, stats: () => ({ enabled, ...stats }) };
  }
  
  /** The system-prompt lines a person's ai.preferences add ('' when none). */
ddiff --git a/test/helpers.js b/test/helpers.js
iindex af06364..dc56f9f 100644
---- a/test/helpers.js
++++ b/test/helpers.js
@@@ -42,14 +42,14 @@ function tmpDir() {
  }
  
  /** Boot the service. `env` goes through config.load() and is also what secrets resolve against. */
--// A boot on a dir used before is a restart on the same database (as the SQLite file was): its database stays open.
++// A boot on a dir used before is a restart on the same database: its database stays open.
  const restartable = new Map();
  
  async function boot({ env = {}, dir, clock, fetchImpl, credentialFetch } = {}) {
      const reuse = dir !== undefined;
      if (dir === undefined) dir = tmpDir();
      const fullEnv = {
--        NODE_ENV: 'test', PORT: '0', AI_DB_PATH: path.join(dir, 'ai.db'), OV_NETWORK_PUBLIC_KEY: publicKey,
++        NODE_ENV: 'test', PORT: '0', OV_NETWORK_PUBLIC_KEY: publicKey, AI_MEDIA_ANALYSIS_DIR: path.join(dir, 'media-tmp'),
          AI_PROVIDER_RETRY_DELAY_MS: '5', AI_QUOTA_SERVICE_RPM: '0', AI_QUOTA_SERVICE_RPD: '0',
          ...env,
      };
ddiff --git a/test/run.js b/test/run.js
iindex 6b7bd5f..30a54bf 100644
---- a/test/run.js
++++ b/test/run.js
@@@ -1,7 +1,7 @@
  #!/usr/bin/env node
  /**
   * Runs every test in test/ — the files named *.test.js — each in its own process, and fails
-- * if any of them fails. They use temp SQLite databases, a generated signing key, the deterministic
++ * if any of them fails. They use temp databases (PGlite by default, PostgreSQL with npm run test:pg), a generated signing key, the deterministic
   * stub provider and local HTTP servers on random ports; none of them needs the network, a paid
   * key or a running OpenVibe.Network.
   *
ddiff --git a/test/user-modules.test.js b/test/user-modules.test.js
iindex 294f6dc..85af2c2 100644
---- a/test/user-modules.test.js
++++ b/test/user-modules.test.js
@@@ -75,7 +75,6 @@ t.test('runs for someone without preferences, or for nobody, are untouched', asy
  
  t.test('ai.usage_summary: 30-day runs and tokens per person, written only when changed', async () => {
      const mods = require('../server/user-modules').createUserModules({ db: h.db, config: h.config || { networkInternalUrl: h.env.OV_NETWORK_INTERNAL_URL }, env: h.env, log: {} });
--    mods.ensureSchema();
      const s = await mods.summarize(A.id);
      assert.strictEqual(s.runs_30d, 2); assert.strictEqual(s.tokens_30d, 80);
      assert.deepStrictEqual(s.by_service, { live: 2 });