diff --git a/custom_components/houseplan/const.py b/custom_components/houseplan/const.py
index 7c6133b..ad40247 100755
--- a/custom_components/houseplan/const.py
+++ b/custom_components/houseplan/const.py
@@ -34,7 +34,7 @@ PLAN_ORPHAN_TTL_S = 3600
 SCHEDULED_GRACE_S = 30 * 24 * 3600
 FILES_DIR = "houseplan/files"
 CONF_ADMIN_ONLY = "admin_only"
-VERSION = "1.46.4"
+VERSION = "1.46.5"
 
 DEFAULT_CONFIG: dict = {
     "spaces": [],
diff --git a/custom_components/houseplan/frontend/houseplan-card.js b/custom_components/houseplan/frontend/houseplan-card.js
index 59bd2b0..477ebbe 100755
--- a/custom_components/houseplan/frontend/houseplan-card.js
+++ b/custom_components/houseplan/frontend/houseplan-card.js
@@ -2561,4 +2561,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
               </button>`}
         </div>
       </div>
-    </div>`}}ps.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ps._touchSeen=!1,ps._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,ps.styles=Ui,customElements.get("houseplan-card")||customElements.define("houseplan-card",ps),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.46.4 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}ps.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ps._touchSeen=!1,ps._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,ps.styles=Ui,customElements.get("houseplan-card")||customElements.define("houseplan-card",ps),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.46.5 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/custom_components/houseplan/manifest.json b/custom_components/houseplan/manifest.json
index c16bff9..53b05b2 100755
--- a/custom_components/houseplan/manifest.json
+++ b/custom_components/houseplan/manifest.json
@@ -16,5 +16,5 @@
   "issue_tracker": "https://github.com/Matysh/houseplan-card/issues",
   "requirements": [],
   "single_config_entry": true,
-  "version": "1.46.4"
+  "version": "1.46.5"
 }
diff --git a/custom_components/houseplan/plans.py b/custom_components/houseplan/plans.py
index 962cd6f..a269a04 100644
--- a/custom_components/houseplan/plans.py
+++ b/custom_components/houseplan/plans.py
@@ -240,11 +240,12 @@ def collect_plans(
     # other file of its own is a superseded or rejected upload, so the short
     # rule is right for those. Getting this distinction wrong (protecting
     # nothing) destroyed two detached plans on 2026-07-28.
-    detached = {
-        str(sp.get("id")) for sp in (new_cfg or {}).get("spaces") or []
-        if not sp.get("plan_url")
-    }
-    cutoff = (time.time() if now is None else now) - PLAN_ORPHAN_TTL_S
+    # The short rule fits exactly one case: a space that HAS a plan, where any
+    # other file of its own can only be a superseded or rejected upload.
+    spaces = {str(sp.get("id")): sp.get("plan_url") for sp in (new_cfg or {}).get("spaces") or []}
+    now_s = time.time() if now is None else now
+    reject_cutoff = now_s - PLAN_ORPHAN_TTL_S
+    cutoff = now_s - SCHEDULED_GRACE_S
     removed = 0
     try:
         items = sorted(plans_dir.iterdir()) if plans_dir.is_dir() else []
@@ -259,10 +260,19 @@ def collect_plans(
             continue
         superseded = item.name in old_refs
         if not superseded:
-            if item.name.split(".")[0] in detached:
-                continue  # detached, not abandoned — the space is waiting for it
+            space = item.name.split(".")[0]
+            if space in spaces and not spaces[space]:
+                # PRODUCT RULE (owner's decision, 2026-07-28): a detached plan
+                # is never deleted, at any age. The space is there and currently
+                # has no plan — the image was detached, one click undoes that,
+                # and the editor says the file stays. The two errors are not
+                # symmetrical: a few megabytes we did not need can always be
+                # removed by hand, a file we should not have removed cannot be
+                # brought back. When in doubt, keep it.
+                continue
+            limit = reject_cutoff if space in spaces else cutoff
             try:
-                if item.stat().st_mtime >= cutoff:
+                if item.stat().st_mtime >= limit:
                     continue
             except OSError:
                 continue
diff --git a/custom_components/houseplan/websocket_api.py b/custom_components/houseplan/websocket_api.py
index c16e912..700da3d 100755
--- a/custom_components/houseplan/websocket_api.py
+++ b/custom_components/houseplan/websocket_api.py
@@ -263,34 +263,68 @@ async def ws_content_sign(hass: HomeAssistant, connection, msg: dict[str, Any])
 )
 @websocket_api.async_response
 async def ws_files_cleanup(hass: HomeAssistant, connection, msg: dict[str, Any]) -> None:
-    """Delete a marker's file folder — called only AFTER the config is committed."""
+    """Drop a marker folder's leftovers after its files moved elsewhere.
+
+    Called after a rebind: the files were copied to the new marker id and the
+    config that references them is committed, so the source folder is spent.
+
+    It used to `rmtree` the folder on the client's word alone. Two ways that
+    ends badly: a partial copy leaves some urls still pointing INTO this folder
+    (the migration deliberately does not rewrite those), and a wrong or stale
+    id from any client deletes a live marker's attachments outright. So the
+    server checks for itself — under the config lock — and removes only files
+    the stored configuration does not reference. Same principle as the
+    collector: a client may say what it no longer needs, never what may go.
+    """
     if not _check_write(hass, connection):
         connection.send_error(msg["id"], "unauthorized", "Only administrators may edit files")
         return
-    import shutil
-    from pathlib import Path
-
+    rt = _runtime(hass, connection, msg["id"])
+    if rt is None:
+        return
     from .const import FILES_DIR
+    from .plans import attachment_refs
     from .validation import sanitize_marker_id
 
     mid = sanitize_marker_id(msg["marker_id"])
-    if not mid:
-        connection.send_result(msg["id"], {"ok": True, "removed": False})
-        return
     base = Path(hass.config.path(FILES_DIR)).resolve()
-    target = (base / mid).resolve()
-    if not str(target).startswith(str(base)) or target == base:
-        connection.send_result(msg["id"], {"ok": True, "removed": False})
+    target = (base / mid).resolve() if mid else base
+    if not mid or not str(target).startswith(str(base)) or target == base:
+        connection.send_result(msg["id"], {"ok": True, "removed": 0, "kept": 0})
         return
 
-    def _rm() -> bool:
-        if not target.is_dir():
-            return False
-        shutil.rmtree(target, ignore_errors=True)
-        return True
+    async with rt.write_lock:
+        stored = await rt.config_store.async_load() or {}
+        refs = attachment_refs(stored.get("config") or {})
 
-    removed = await hass.async_add_executor_job(_rm)
-    connection.send_result(msg["id"], {"ok": True, "removed": removed})
+        def _rm() -> tuple[int, int]:
+            if not target.is_dir():
+                return 0, 0
+            removed = kept = 0
+            for item in sorted(target.iterdir()):
+                if not item.is_file():
+                    continue
+                if f"{mid}/{item.name}" in refs:
+                    kept += 1
+                    continue
+                try:
+                    item.unlink()
+                    removed += 1
+                except OSError as err:
+                    _LOGGER.warning("House Plan: could not remove %s: %s", item, err)
+            if not kept:
+                try:
+                    target.rmdir()
+                except OSError:
+                    pass
+            return removed, kept
+
+        removed, kept = await hass.async_add_executor_job(_rm)
+    if kept:
+        _LOGGER.info(
+            "House Plan: kept %s file(s) in %s — the configuration still references them", kept, mid
+        )
+    connection.send_result(msg["id"], {"ok": True, "removed": removed, "kept": kept})
 
 
 @websocket_api.websocket_command(
diff --git a/demo/srv/assets/houseplan-card.js b/demo/srv/assets/houseplan-card.js
index 59bd2b0..477ebbe 100755
--- a/demo/srv/assets/houseplan-card.js
+++ b/demo/srv/assets/houseplan-card.js
@@ -2561,4 +2561,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
               </button>`}
         </div>
       </div>
-    </div>`}}ps.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ps._touchSeen=!1,ps._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,ps.styles=Ui,customElements.get("houseplan-card")||customElements.define("houseplan-card",ps),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.46.4 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}ps.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ps._touchSeen=!1,ps._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,ps.styles=Ui,customElements.get("houseplan-card")||customElements.define("houseplan-card",ps),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.46.5 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/dist/houseplan-card.js b/dist/houseplan-card.js
index 59bd2b0..477ebbe 100755
--- a/dist/houseplan-card.js
+++ b/dist/houseplan-card.js
@@ -2561,4 +2561,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
               </button>`}
         </div>
       </div>
-    </div>`}}ps.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ps._touchSeen=!1,ps._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,ps.styles=Ui,customElements.get("houseplan-card")||customElements.define("houseplan-card",ps),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.46.4 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}ps.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ps._touchSeen=!1,ps._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,ps.styles=Ui,customElements.get("houseplan-card")||customElements.define("houseplan-card",ps),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.46.5 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md
index 72a3d3d..9cf1294 100644
--- a/docs/ARCHITECTURE.md
+++ b/docs/ARCHITECTURE.md
@@ -208,16 +208,20 @@ cancelled would wait for a write that may never come. A new icon has no id yet,
 files go to a per-dialog staging folder and move to the real id once the config
 write is accepted — the same copy → save → cleanup order as a rebind.
 `config/set` collects what its commit superseded — that much a commit knows for
-certain. *Unreferenced* is a far weaker signal, and how weak depends on the
-case. A space with `plan_url = null` had its image **detached**, which is
-reversible and which the editor promises leaves the file alone: those are never
-collected. A space that does have a plan can only be holding its own rejected
-uploads, so `PLAN_ORPHAN_TTL_S` (1 hour) still applies to them. For attachments,
-a per-dialog staging folder holds nothing but an upload from a dialog that was
-never saved — one hour again — while a marker's own folder waits
-`SCHEDULED_GRACE_S` (30 days). This is not theoretical caution: applying the
-one-hour rule to every unreferenced file destroyed two detached plans on
-2026-07-28.
+certain. *Unreferenced* is a far weaker signal, and the policy follows from one
+asymmetry: **a few unnecessary megabytes can always be removed by hand; a file
+we should not have removed cannot be brought back.** When the evidence is weak,
+keep the file. Owner's decision, 2026-07-28, after the one-hour rule applied to
+every unreferenced file destroyed two detached plans.
+
+| Case | What it means | Rule |
+|---|---|---|
+| In the old revision, not in the new | a save replaced it | removed immediately |
+| Space exists, has **no** plan | detached, one click to undo | **never removed** |
+| Space exists, has a plan | its own rejected upload | `PLAN_ORPHAN_TTL_S` (1 h) |
+| Space no longer exists | deliberate deletion, but people misclick | `SCHEDULED_GRACE_S` (30 d) |
+| Attachment in `up_*` | a dialog that was never saved | `PLAN_ORPHAN_TTL_S` (1 h) |
+| Attachment in a marker folder | unreferenced, but may come back | `SCHEDULED_GRACE_S` (30 d) |
 
 **Config writes are serialized** (HP-1454-03). `_writeConfig()` chains onto a
 single promise: one `config/set` in flight, each carrying the revision the
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 48d7622..97f38c2 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,5 +1,25 @@
 # Changelog
 
+## v1.46.5 — 2026-07-28 (audit of every automatic deletion)
+- **A detached plan is never deleted, at any age.** v1.46.4 gave it a month;
+  this makes it permanent and writes the reason down where the next change will
+  see it. The rule, now in docs/SCOPE.md: the component may delete a file only
+  when a user action says so — replacing a plan, removing an attachment,
+  deleting a device. "Nothing points at this any more" is not such an action.
+  The errors are not symmetrical: wasted disk is visible, cheap and reversible;
+  a deleted file is none of those.
+- **`houseplan/files/cleanup` no longer takes a folder on the client's word.**
+  After a device is rebound its files are copied to the new id and the old
+  folder is dropped — with `rmtree`, on whatever id the card sent. Two ways that
+  ends badly: a partial copy leaves some urls still pointing into that folder
+  (the migration deliberately does not rewrite those, so they were live links to
+  files being deleted), and a wrong or stale id from any client would destroy a
+  live device's manuals. The server now checks the stored configuration itself,
+  under the config lock, and removes only files nothing references.
+- **A plan of a space that was deleted waits thirty days instead of an hour.**
+  Deleting a space is deliberate, but an hour is a short window in which to
+  notice it was a misclick.
+
 ## v1.46.4 — 2026-07-28 (data loss: detached plans were collected as garbage)
 - **A plan you detach is no longer deleted an hour later.** Switching a space to
   "draw" clears the reference and, as the editor has always said, leaves the
diff --git a/docs/CHANGELOG.ru.md b/docs/CHANGELOG.ru.md
index 66b38bb..898145a 100755
--- a/docs/CHANGELOG.ru.md
+++ b/docs/CHANGELOG.ru.md
@@ -6,6 +6,26 @@
 > **Правило проекта:** оба файла пополняются в одном коммите с самим
 > изменением — как и остальная документация (см. docs/STATUS.md).
 
+## v1.46.5 — 2026-07-28 (ревизия всех автоматических удалений)
+- **Отцеплённый план не удаляется никогда, ни в каком возрасте.** В v1.46.4 ему
+  давался месяц; теперь это навсегда, и причина записана там, где её увидит
+  следующая правка. Правило, оно же в docs/SCOPE.md: компонент вправе удалить
+  файл только тогда, когда об этом говорит действие пользователя — замена
+  плана, удаление вложения, удаление устройства. «На это больше никто не
+  ссылается» таким действием не является. Ошибки несимметричны: занятое зря
+  место видно, стоит копейки и обратимо; удалённый файл — ничего из этого.
+- **`houseplan/files/cleanup` больше не сносит папку по слову клиента.** После
+  перепривязки устройства файлы копируются под новый id, а старая папка
+  удалялась — через `rmtree`, по тому id, который прислала карточка. Два плохих
+  исхода: при частичном копировании часть ссылок продолжает указывать внутрь
+  этой папки (миграция намеренно их не переписывает — то есть это были живые
+  ссылки на удаляемые файлы), а неверный или устаревший id от любого клиента
+  уничтожил бы инструкции существующего устройства. Теперь сервер сам сверяется
+  с сохранённой конфигурацией, под её блокировкой, и удаляет только то, на что
+  никто не ссылается.
+- **План удалённого пространства ждёт тридцать дней вместо часа.** Удаление
+  пространства осознанно, но час — короткое окно, чтобы заметить промах.
+
 ## v1.46.4 — 2026-07-28 (потеря данных: отцеплённые планы убирались как мусор)
 - **Отцеплённый план больше не удаляется через час.** Переключение пространства
   в режим «нарисовать» снимает ссылку и, как редактор всегда и говорил,
diff --git a/docs/SCOPE.md b/docs/SCOPE.md
index 6cb0371..e54ee0d 100755
--- a/docs/SCOPE.md
+++ b/docs/SCOPE.md
@@ -66,6 +66,18 @@ refuse locks or be added to this paragraph.
 - Plan-level "security glance": one badge for "all locked / N open" (J2).
 - Threshold colouring for room-card metrics (J5).
 
+## Standing rule: never delete a user's file on an inference
+
+Fixed with the owner on 2026-07-28, after automatic collection removed two
+detached floor plans. The component may delete a file only when the user's
+action says so — replacing a plan, removing an attachment, deleting a device.
+"Nothing points at this any more" is not such an action: detaching a plan is one
+click and reversible, and the editor tells the user the file stays.
+
+The asymmetry is the whole argument. Wasted disk is visible, cheap and
+reversible; a deleted file is none of those. Where the evidence is weak, keep
+the file — and if a future version wants to reclaim that space, it asks.
+
 ## Out of scope — never build, point users to the right tool
 
 - Automations, scenes, scripts, notifications → HA core.
diff --git a/docs/STATUS.md b/docs/STATUS.md
index 354f868..8cc5031 100644
--- a/docs/STATUS.md
+++ b/docs/STATUS.md
@@ -15,12 +15,12 @@
 
 | Item | State |
 |---|---|
-| Version | **v1.46.4** everywhere (manifest, const.py, package.json, CARD_VERSION); deployed to the home instance |
+| Version | **v1.46.5** everywhere (manifest, const.py, package.json, CARD_VERSION); deployed to the home instance |
 | Workflow | Since 2026-07-22: minor changes go to branch **`dev`** (build + smokes → deploy home → commit → push, NO release); releases are batched on the owner's command (merge dev→main, one tag, one release with a summary changelog, CI checked on dev beforehand) |
 | GitHub | https://github.com/Matysh/houseplan-card — **`main` carries every published release, the latest tag is the current version above**; `dev` is where work lands and is merged into `main` at release time (so `dev` is normally equal to or ahead of `main`, never behind). Push via SSH key `ha_jb` (remote git@github.com:…); API releases via the fine-grained PAT in `~/.git-credentials` (Contents R/W, issued 2026-07-23) |
 | CI | validate.yml (hacs + hassfest + frontend + backend) green; release.yml attaches the bundle on release publish |
 | HACS | Custom repository works. **Inclusion PR: hacs/default#9004** — open, valid, labeled; ~864 older open PRs but merge rate ≈180/mo; realistic ETA 1–3 months (checked 2026-07-24) |
-| Home instance | ha.jbstudio.pro (SSH port 323, key `ha_jb`), deployed **v1.46.4** via direct copy (HACS custom repo also installed) |
+| Home instance | ha.jbstudio.pro (SSH port 323, key `ha_jb`), deployed **v1.46.5** via direct copy (HACS custom repo also installed) |
 | Localization | UI en/ru (src/i18n/*.json), everything user-visible localized incl. kiosk popover |
 | Tests | Four layers: frontend unit (`npm test`, node:test over `test-build/`), pure backend (`pytest tests_backend`, runs anywhere), HA-harness backend (same folder, CI only — needs py3.13 + pytest-homeassistant-custom-component), and browser smokes (`demo/smoke_*.mjs`, headless chromium). **Counts are not written down here** — they went stale within two releases while the version line beside them was kept current, which reads as less coverage than exists (review R5-2). Run `npm run inventory` for the current numbers, or read them off the last CI run |
 | Community | **Telegram chat: https://t.me/ha_houseplan** (created 2026-07-27) — the primary user-facing support channel; GitHub issues stay for bugs/features. Link it from any new release notes and posts |
diff --git a/docs/TESTING.md b/docs/TESTING.md
index 5f65006..3484da8 100644
--- a/docs/TESTING.md
+++ b/docs/TESTING.md
@@ -239,10 +239,15 @@ Run the *core flows* (marked ★ below) in each environment at least once per mi
       on the plan after a reload. Same for each tap action and each fill mode
       [auto: backend test_every_display_mode_the_editor_offers_is_accepted and
       neighbours, test_a_marker_showing_its_value_can_be_saved]
-- [ ] Detaching a plan keeps the file (v1.46.4): switch a space to "draw",
-      restart, wait a day — the image is still in `config/houseplan/plans/` and
-      can be re-attached. Replacing a plan still removes the one it replaced,
-      immediately [auto: unit: test_scheduled_collection_never_takes_a_detached_plan]
+- [ ] Detaching a plan keeps the file (v1.46.4/v1.46.5): switch a space to
+      "draw", restart, wait — the image stays in `config/houseplan/plans/`
+      indefinitely and can be re-attached. Replacing a plan still removes the one
+      it replaced, immediately
+      [auto: unit: test_scheduled_collection_never_takes_a_detached_plan]
+- [ ] Rebinding a device does not eat its manuals (v1.46.5): attach two files to
+      a device, rebind it to another HA device — both are readable afterwards.
+      If a copy failed, the file it failed on is still there rather than deleted
+      with the folder [auto: backend test_files_cleanup_keeps_referenced_files]
 - [ ] Nothing accumulates on an idle instance (v1.46.2/v1.46.3, HP-1461-01,
       HP-1462-01): attach a file, cancel the dialog, and do not save anything
       else — the file is gone after a restart AND after the daily pass, while
diff --git a/package.json b/package.json
index 0ee8c97..1ab7c4f 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "houseplan-card",
-  "version": "1.46.4",
+  "version": "1.46.5",
   "description": "Interactive house plan Lovelace card for Home Assistant",
   "license": "MIT",
   "type": "module",
diff --git a/src/houseplan-card.ts b/src/houseplan-card.ts
index bc57104..294a1ca 100755
--- a/src/houseplan-card.ts
+++ b/src/houseplan-card.ts
@@ -35,7 +35,7 @@ import './space-card';
 import { cardStyles } from './styles';
 import { langOf, t, type I18nKey } from './i18n';
 
-const CARD_VERSION = '1.46.4';
+const CARD_VERSION = '1.46.5';
 const LS_KEY = 'houseplan_card_layout_v1';
 const LS_CFG = 'houseplan_card_cfg_v1'; // cache of the server config+layout for instant rendering
 const LS_ZOOM = 'houseplan_card_zoom_v1';
diff --git a/tests_backend/test_ha_websocket.py b/tests_backend/test_ha_websocket.py
index 32f097c..1391e1b 100644
--- a/tests_backend/test_ha_websocket.py
+++ b/tests_backend/test_ha_websocket.py
@@ -1002,3 +1002,47 @@ async def test_sweep_and_a_config_write_do_not_race(
     assert await hass.async_add_executor_job(
         os.path.isfile, os.path.join(plans, referenced)
     ), f"the accepted config points at {referenced}, which must exist"
+
+
+async def test_files_cleanup_keeps_referenced_files(
+    hass: HomeAssistant, hass_ws_client: WebSocketGenerator
+) -> None:
+    """v1.46.5: the client may say what it no longer needs, never what may go.
+
+    `files/cleanup` used to rmtree the folder it was handed. A partial migration
+    leaves some urls pointing into that folder — the copy deliberately does not
+    rewrite the ones it could not confirm — so those were live links to files
+    being deleted. A wrong id from any client had the same effect on a device's
+    manuals.
+    """
+    import os
+
+    from custom_components.houseplan.const import FILES_DIR
+
+    await _setup(hass)
+    client = await hass_ws_client(hass)
+    folder = os.path.join(hass.config.path(FILES_DIR), "m7")
+
+    def _seed() -> None:
+        os.makedirs(folder, exist_ok=True)
+        for n in ("kept.pdf", "orphan.pdf"):
+            with open(os.path.join(folder, n), "wb") as fh:
+                fh.write(b"x")
+
+    await hass.async_add_executor_job(_seed)
+
+    cfg = await _cfg([{"id": "s7", "plan_url": None}])
+    cfg["markers"] = [
+        {"id": "other", "binding": "virtual",
+         "pdfs": [{"name": "k", "url": "/api/houseplan/content/files/m7/kept.pdf"}]}
+    ]
+    assert (await _save(client, cfg, 0))["success"]
+
+    await client.send_json_auto_id({"type": "houseplan/files/cleanup", "marker_id": "m7"})
+    resp = await client.receive_json()
+    assert resp["success"] and resp["result"] == {"ok": True, "removed": 1, "kept": 1}
+
+    assert await hass.async_add_executor_job(os.path.isfile, os.path.join(folder, "kept.pdf")), (
+        "a file the configuration still references survives a cleanup of its folder"
+    )
+    assert not await hass.async_add_executor_job(os.path.isfile, os.path.join(folder, "orphan.pdf"))
diff --git a/tests_backend/test_validation.py b/tests_backend/test_validation.py
index 21d0fdd..bed5941 100644
--- a/tests_backend/test_validation.py
+++ b/tests_backend/test_validation.py
@@ -576,9 +576,23 @@ def test_scheduled_collection_never_takes_a_detached_plan(tmp_path):
     cfg = {"spaces": [{"id": "f1", "plan_url": None},          # detached, space alive
                       {"id": "f2", "plan_url": None}]}         # same
     assert plans.collect_plans(d, cfg, cfg) == 1
-    assert (d / "f1.svg").is_file(), "a detached plan of a live space is kept"
+    assert (d / "f1.svg").is_file(), "a detached plan of a live space is kept, at any age"
     assert (d / "f2.tok.png").is_file()
-    assert not (d / "gone.old.png").exists(), "a plan of a space that no longer exists ages out"
+    assert not (d / "gone.old.png").exists(), "a plan of a deleted space ages out after a month"
+
+    # a space that HAS a plan: its other files can only be its own rejects
+    import os
+    import time
+
+    (d / "f9.current.png").write_bytes(b"x")
+    (d / "f9.reject.png").write_bytes(b"x")
+    hour = time.time() - const.PLAN_ORPHAN_TTL_S - 60
+    os.utime(d / "f9.reject.png", (hour, hour))
+    live = {"spaces": [{"id": "f1", "plan_url": None}, {"id": "f2", "plan_url": None},
+                       {"id": "f9", "plan_url": "/p/f9.current.png"}]}
+    assert plans.collect_plans(d, live, live) == 1
+    assert (d / "f9.current.png").is_file()
+    assert not (d / "f9.reject.png").exists()
 
     # a commit still removes what it SUPERSEDED — that it knows for certain
     old = {"spaces": [{"id": "f1", "plan_url": "/p/f1.svg"}, {"id": "f2", "plan_url": None}]}