Resolve issues #438 #439 #440 #441 (#751)

* feat(leveraged-yield): implement openPosition, closePosition and core leverage engine (#441)

* feat(leveraged-yield): add health factor tracking and partial/full deleveraging (#441)

* test(leveraged-yield): add single-tx leverage adjustment and unit test suite (#441)

* feat(yield-splitter): implement SEP-41 compliant PT and YT contracts (#440)

* feat(yield-splitter): implement splitPosition, mergeTokens and time-weighted yield math (#440)

* test(yield-splitter): add preview methods and full lifecycle unit test suite (#440)

* feat(auto-compound-vault): implement vault share token and deposit/withdraw mechanics (#439)

* feat(auto-compound-vault): add atomic harvest compounding with slippage protection (#439)

* test(auto-compound-vault): add deposit/withdraw previews and vault test suite (#439)

* feat(yield-router): build router core allocation engine and pool interfaces (#438)

* test(yield-router): add routing test suite with gas benchmarks (#438)

---------

Co-authored-by: StellarLend Dev <dev@stellarlend.io>

Author: ProBuidler

stellar-lend/Cargo.lock

@@ -39,6 +39,15 @@ members = [
   "contracts/referral-program",
   "contracts/token-adapter",
   "contracts/compliance",
+  "contracts/leveraged-yield",
+  "contracts/position-manager",
+  "contracts/principal-token",
+  "contracts/yield-token",
+  "contracts/yield-splitter",
+  "contracts/vault-share",
+  "contracts/auto-compound-vault",
+  "contracts/pool-interfaces",
+  "contracts/yield-router",
 ]
 exclude = [
   "fuzz",

stellar-lend/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "auto-compound-vault"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+soroban-sdk = { workspace = true }
+
+[dev-dependencies]
+soroban-sdk = { workspace = true, features = ["testutils"] }