BitSong fantoken factory (#845)

contracts/external/btsg-ft-factory/Cargo.toml

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+[package]
+name = "btsg-ft-factory"
+authors = ["noah <noah@daodao.zone>"]
+description = "A CosmWasm factory contract for issuing fantokens on BitSong."
+edition = { workspace = true }
+license = { workspace = true }
+repository = { workspace = true }
+version = { workspace = true }
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[features]
+# for more explicit tests, cargo test --features=backtraces
+backtraces = ["cosmwasm-std/backtraces"]
+# use library feature to disable all instantiate/execute/query exports
+library = []
+
+[dependencies]
+cosmwasm-std = { workspace = true }
+cosmwasm-schema = { workspace = true }
+cw-storage-plus = { workspace = true }
+cw2 = { workspace = true }
+dao-interface = { workspace = true }
+osmosis-std-derive = { workspace = true }
+prost = { workspace = true }
+prost-types = { workspace = true }
+schemars = { workspace = true }
+serde = { workspace = true }
+thiserror = { workspace = true }
+
+[dev-dependencies]
+anyhow = { workspace = true }
+cosmwasm-schema = { workspace = true }
+cw-multi-test = { workspace = true }
+cw-utils = { workspace = true }
+dao-dao-core = { workspace = true, features = ["library"] }
+dao-proposal-single = { workspace = true, features = ["library"] }
+dao-testing = { workspace = true }
+dao-voting-token-staked = { workspace = true, features = ["library"] }
+dao-voting = { workspace = true }

contracts/external/btsg-ft-factory/README.md

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+# btsg-ft-factory
+
+Serves as a factory that issues new
+[fantokens](https://github.com/bitsongofficial/go-bitsong/tree/main/x/fantoken)
+on BitSong and returns their denom for use with the
+[dao-voting-token-staked](../../voting/dao-voting-token-staked) voting module
+contract.
+
+Instantiation and execution are permissionless. All DAOs will use the same
+factory and execute `Issue` to create new fantokens through `TokenInfo::Factory`
+during voting module instantiation.

contracts/external/btsg-ft-factory/examples/schema.rs

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+use btsg_ft_factory::msg::{ExecuteMsg, InstantiateMsg, MigrateMsg, QueryMsg};
+use cosmwasm_schema::write_api;
+
+fn main() {
+    write_api! {
+        instantiate: InstantiateMsg,
+        query: QueryMsg,
+        execute: ExecuteMsg,
+        migrate: MigrateMsg,
+    }
+}

contracts/external/btsg-ft-factory/schema/btsg-ft-factory.json

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+{
+  "contract_name": "btsg-ft-factory",
+  "contract_version": "2.5.0",
+  "idl_version": "1.0.0",
+  "instantiate": {
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "InstantiateMsg",
+    "type": "object",
+    "additionalProperties": false
+  },
+  "execute": {
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "ExecuteMsg",
+    "oneOf": [
+      {
+        "description": "Issues a new fantoken.",
+        "type": "object",
+        "required": [
+          "issue"
+        ],
+        "properties": {
+          "issue": {
+            "$ref": "#/definitions/NewFanToken"
+          }
+        },
+        "additionalProperties": false
+      }
+    ],
+    "definitions": {
+      "InitialBalance": {
+        "type": "object",
+        "required": [
+          "address",
+          "amount"
+        ],
+        "properties": {
+          "address": {
+            "type": "string"
+          },
+          "amount": {
+            "$ref": "#/definitions/Uint128"
+          }
+        },
+        "additionalProperties": false
+      },
+      "NewFanToken": {
+        "type": "object",
+        "required": [
+          "initial_balances",
+          "max_supply",
+          "name",
+          "symbol",
+          "uri"
+        ],
+        "properties": {
+          "initial_balances": {
+            "description": "The initial balances to set for the token, cannot be empty.",
+            "type": "array",
+            "items": {
+              "$ref": "#/definitions/InitialBalance"
+            }
+          },
+          "initial_dao_balance": {
+            "description": "Optional balance to mint for the DAO.",
+            "anyOf": [
+              {
+                "$ref": "#/definitions/Uint128"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "max_supply": {
+            "description": "Fan token max supply.",
+            "allOf": [
+              {
+                "$ref": "#/definitions/Uint128"
+              }
+            ]
+          },
+          "name": {
+            "description": "Fan token name.",
+            "type": "string"
+          },
+          "symbol": {
+            "description": "Fan token symbol.",
+            "type": "string"
+          },
+          "uri": {
+            "description": "Fan token URI.",
+            "type": "string"
+          }
+        },
+        "additionalProperties": false
+      },
+      "Uint128": {
+        "description": "A thin wrapper around u128 that is using strings for JSON encoding/decoding, such that the full u128 range can be used for clients that convert JSON numbers to floats, like JavaScript and jq.\n\n# Examples\n\nUse `from` to create instances of this and `u128` to get the value out:\n\n``` # use cosmwasm_std::Uint128; let a = Uint128::from(123u128); assert_eq!(a.u128(), 123);\n\nlet b = Uint128::from(42u64); assert_eq!(b.u128(), 42);\n\nlet c = Uint128::from(70u32); assert_eq!(c.u128(), 70); ```",
+        "type": "string"
+      }
+    }
+  },
+  "query": {
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "QueryMsg",
+    "type": "string",
+    "enum": []
+  },
+  "migrate": {
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "MigrateMsg",
+    "type": "object",
+    "additionalProperties": false
+  },
+  "sudo": null,
+  "responses": {}
+}