Update daml core concepts snippets config

config/snippet-config/daml-snippet-list-remote.json

@@ -11,7 +11,35 @@
       },
       "description": "",
       "options": {
-        "language": "daml"
+        "language": "haskell"
+      }
+    },
+    {
+      "snippetName": "tutorials-smart-contracts-daml-daml-intro-choices-daml-party-roles-asset-begin",
+      "sourceRepo": "daml",
+      "sourceFilepath": "sdk/docs/sharable/sdk/tutorials/smart-contracts/daml/daml-intro-choices/daml/PartyRoles.daml",
+      "location": {
+        "type": "stringMarker",
+        "start": "-- ASSET_BEGIN",
+        "end": "-- ASSET_END"
+      },
+      "description": "Core concepts: party roles in contracts (Asset template)",
+      "options": {
+        "language": "haskell"
+      }
+    },
+    {
+      "snippetName": "tutorials-smart-contracts-daml-daml-intro-choices-daml-party-roles-template-structure-begin",
+      "sourceRepo": "daml",
+      "sourceFilepath": "sdk/docs/sharable/sdk/tutorials/smart-contracts/daml/daml-intro-choices/daml/TemplateChoices.daml",
+      "location": {
+        "type": "stringMarker",
+        "start": "-- TEMPLATE_STRUCTURE_BEGIN",
+        "end": "-- TEMPLATE_STRUCTURE_END"
+      },
+      "description": "Core concepts: template structure (Token template)",
+      "options": {
+        "language": "haskell"
       }
     }
   ]

docs-main/overview/understand/core-concepts.mdx

@@ -3,9 +3,9 @@ title: "Core Concepts"
 description: "Essential building blocks of Canton Network: parties, validators, synchronizers, and smart contracts"
 ---
 
-import DamlOverviewUnderstandCoreConceptsL183 from "/snippets/daml-docs/overview_understand_core-concepts_L183.mdx";
+import DamlPartyRolesAsset from "/snippets/external/daml/main/tutorials-smart-contracts-daml-daml-intro-choices-daml-party-roles-asset-begin.mdx";
+import DamlPartyRolesTemplateStructure from "/snippets/external/daml/main/tutorials-smart-contracts-daml-daml-intro-choices-daml-party-roles-template-structure-begin.mdx";
 import DamlOverviewUnderstandCoreConceptsL223 from "/snippets/daml-docs/overview_understand_core-concepts_L223.mdx";
-import DamlOverviewUnderstandCoreConceptsL44 from "/snippets/daml-docs/overview_understand_core-concepts_L44.mdx";
 
 
 Understanding Canton requires grasping four fundamental concepts: **parties**, **validator** node, **synchronizers**, and **templates** (smart contracts). This page introduces each and explains how they work together.
@@ -46,7 +46,7 @@ Unlike Ethereum addresses, parties create state on validators and have costs ass
 
 Parties interact with contracts in three roles:
 
-<DamlOverviewUnderstandCoreConceptsL44 />
+<DamlPartyRolesAsset />
 
 | Role | Can Create | Can See | Can Act |
 |------|------------|---------|---------|
@@ -171,7 +171,7 @@ Smart contracts in Canton are defined using **Daml**, a purpose-built language f
 
 ### Template Structure
 
-<DamlOverviewUnderstandCoreConceptsL183 />
+<DamlPartyRolesTemplateStructure />
 
 ### Contracts Are Immutable
 

docs-main/snippets/daml-docs/overview_understand_core-concepts_L223.mdx

@@ -1,6 +1,6 @@
 ```haskell
 -- Consuming: archives the contract
-choice Transfer : ContractId Token
+choice ChangeOwner : ContractId Token
   controller owner
   do create this with owner = newOwner
 

docs-main/snippets/external/daml/main/tutorials-smart-contracts-daml-daml-intro-9-daml-test-intro-asset-multi-trade-fora-example-begin.mdx

@@ -1,6 +1,6 @@
-```haskell
-  [usdCid, chfCid] <- forA [usdCid, chfCid] (\cid -> submit alice do
-  exerciseCmd cid SetObservers with
-  newObservers = [bob]
-  )
+```daml
+[usdCid, chfCid] <- forA [usdCid, chfCid] (\cid -> submit alice do
+    exerciseCmd cid SetObservers with
+      newObservers = [bob]
+    )
 ```

docs-main/snippets/external/daml/main/tutorials-smart-contracts-daml-daml-intro-choices-daml-party-roles-asset-begin.mdx

@@ -0,0 +1,15 @@
+```haskell
+template Asset
+  with
+    issuer : Party   -- Will be signatory
+    owner : Party    -- Will be observer and controller
+    auditor : Party  -- Will be observer
+  where
+    signatory issuer        -- Must authorize creation; always sees contract
+    observer owner, auditor -- Can see contract
+
+    choice ChangeOwner : ContractId Asset
+      with newOwner : Party
+      controller owner      -- Only owner can exercise this choice
+      do create this with owner = newOwner
+```

docs-main/snippets/external/daml/main/tutorials-smart-contracts-daml-daml-intro-choices-daml-party-roles-template-structure-begin.mdx

@@ -0,0 +1,20 @@
+```haskell
+template Token
+  with
+    -- Data fields
+    owner : Party
+    issuer : Party
+    amount : Decimal
+  where
+    -- Authorization
+    signatory issuer
+    observer owner
+
+    -- Actions
+    choice ChangeOwner : ContractId Token
+      with
+        newOwner : Party
+      controller owner
+      do
+        create this with owner = newOwner
+```