Add README, customization snapshot, and snapshot/restore tooling

Provisioning now restores all GUI customizations on reset+reprovision:

- create_pod_espocrm.sh: deploy the version-controlled espocrm-custom/ tree
  (CTag entity, layouts, i18n, clientDefs, custom views, custom CSS) into the
  pod, then chown www-data and rebuild. Replaces the earlier inline CSS-only
  step. Adds a live-phase cache rebuild so customizations and the client
  cacheTimestamp are refreshed on every run.
- espocrm-custom/: snapshot of custom/ and client/custom/ (source of truth).
- snapshot_espocrm_custom.sh: refresh the snapshot from a running pod.
- readme.md: usage, first-time host setup, image-update and reset workflows.
- Include the task/instruction notes and plan.md for reference.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

espocrm-custom/custom/Espo/Custom/Resources/layouts/Opportunity/bottomPanelsDetail.json

@@ -0,0 +1,21 @@
+{
+    "activities": {
+        "disabled": true
+    },
+    "history": {
+        "disabled": true
+    },
+    "_delimiter_": {
+        "disabled": true
+    },
+    "stream": {
+        "sticked": false,
+        "index": 0
+    },
+    "documents": {
+        "index": 1
+    },
+    "cTags": {
+        "index": 2
+    }
+}

espocrm-custom/custom/Espo/Custom/Resources/layouts/Opportunity/detail.json

@@ -0,0 +1,89 @@
+[
+    {
+        "rows": [
+            [
+                {
+                    "name": "name"
+                }
+            ],
+            [
+                {
+                    "name": "stage"
+                },
+                {
+                    "name": "cLeadQuelle"
+                }
+            ],
+            [
+                {
+                    "name": "cVerguetungsmodell"
+                },
+                {
+                    "name": "amount"
+                }
+            ],
+            [
+                {
+                    "name": "closeDate"
+                },
+                {
+                    "name": "cVerlustgrund"
+                }
+            ]
+        ],
+        "dynamicLogicVisible": null,
+        "style": "default",
+        "dynamicLogicStyled": null,
+        "tabBreak": false,
+        "hidden": false,
+        "noteText": null,
+        "customLabel": "Vorgang"
+    },
+    {
+        "rows": [
+            [
+                {
+                    "name": "account"
+                },
+                {
+                    "name": "cAccount1"
+                }
+            ],
+            [
+                {
+                    "name": "contacts"
+                },
+                false
+            ]
+        ],
+        "dynamicLogicVisible": null,
+        "style": "default",
+        "tabBreak": false,
+        "hidden": false,
+        "noteText": null,
+        "noteStyle": "info",
+        "customLabel": "Beteiligte"
+    },
+    {
+        "rows": [
+            [
+                {
+                    "name": "description"
+                }
+            ],
+            [
+                {
+                    "name": "cProjektlink"
+                }
+            ]
+        ],
+        "dynamicLogicVisible": null,
+        "style": "default",
+        "tabBreak": false,
+        "tabLabel": null,
+        "hidden": false,
+        "noteText": null,
+        "noteStyle": "info",
+        "customLabel": "Projekt"
+    }
+]

espocrm-custom/custom/Espo/Custom/Resources/layouts/Opportunity/kanban.json

@@ -0,0 +1,17 @@
+[
+    {
+        "name": "name",
+        "link": true
+    },
+    {
+        "name": "account"
+    },
+    {
+        "name": "amount",
+        "align": "right",
+        "isLarge": true
+    },
+    {
+        "name": "cLeadQuelle"
+    }
+]

espocrm-custom/custom/Espo/Custom/Resources/layouts/Opportunity/list.json

@@ -0,0 +1,40 @@
+[
+    {
+        "name": "name",
+        "link": true
+    },
+    {
+        "name": "cAccount1",
+        "width": 13
+    },
+    {
+        "name": "account",
+        "width": 13
+    },
+    {
+        "name": "stage",
+        "width": 12
+    },
+    {
+        "name": "cLeadQuelle",
+        "width": 11
+    },
+    {
+        "name": "amount",
+        "width": 9,
+        "align": "right"
+    },
+    {
+        "name": "cVerguetungsmodell",
+        "width": 13
+    },
+    {
+        "name": "closeDate",
+        "width": 9,
+        "hidden": true
+    },
+    {
+        "name": "assignedUser",
+        "width": 9
+    }
+]