Bump rust-lightning to include trampoline changes

[carlaKC]

Depends on #824.

Also needs the following patch on top of 2026-02-ldk-node-base in bitcoin-payment-instructions.

diff --git a/Cargo.toml b/Cargo.toml
index de128db..811cd36 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,8 +21,8 @@ default = ["std"]
 [dependencies]
 #lightning-invoice = { version = "0.34", default-features = false }
 #lightning = { version = "0.2.0", default-features = false, features = ["dnssec"] }
-lightning-invoice = { git = "https://github.com/lightningdevkit/rust-lightning", rev = "98393b3de3d8aec897e9ab783cb2418da504e204", default-features = false }
-lightning = { git = "https://github.com/lightningdevkit/rust-lightning", rev = "98393b3de3d8aec897e9ab783cb2418da504e204", default-features = false, features = ["dnssec"] }
+lightning-invoice = { git = "https://github.com/lightningdevkit/rust-lightning", rev = "128ead25e8d62b0262b71711631220983c48756a", default-features = false }
+lightning = { git = "https://github.com/lightningdevkit/rust-lightning", rev = "128ead25e8d62b0262b71711631220983c48756a", default-features = false, features = ["dnssec"] }
 bitcoin = { version = "0.32", default-features = false }
 getrandom = { version = "0.3", default-features = false, optional = true }
 dnssec-prover = { version = "0.6", default-features = false, optional = true, features = ["validation", "std", "tokio"] }
@@ -34,5 +34,5 @@ serde_json = { version = "1.0", default-features = false, optional = true, featu
 tokio = { version = "1.0", default-features = false, features = ["rt", "macros"] }
 #lightning = { version = "0.2.0", features = ["std"] }
 #lightning-net-tokio = { version = "0.2.0", default-features = false }
-lightning = { git = "https://github.com/lightningdevkit/rust-lightning", rev = "98393b3de3d8aec897e9ab783cb2418da504e204", features = ["std"] }
-lightning-net-tokio = { git = "https://github.com/lightningdevkit/rust-lightning", rev = "98393b3de3d8aec897e9ab783cb2418da504e204", default-features = false }
+lightning = { git = "https://github.com/lightningdevkit/rust-lightning", rev = "128ead25e8d62b0262b71711631220983c48756a", features = ["std"] }
+lightning-net-tokio = { git = "https://github.com/lightningdevkit/rust-lightning", rev = "128ead25e8d62b0262b71711631220983c48756a", default-features = false }```

[ldk-reviews-bot]

👋 Hi! I see this is a draft PR.
I'll wait to assign reviewers until you mark it as ready for review.
Just convert it out of draft status when you're ready for review!

[carlaKC]

Interested in some feedback here 🙏

To use default_value to fill in legacy fields when the new field isn't present, we need to implement Readable/Writeable for Vec<HTLCLocator>. We can't do this because we don't own the trait or the type (orphan rule).

The solution I've gone with here is to use a wrapper struct and pull in the code we have in impl_for_vec in LDK.

Alternatives would be:

• Don't use default_value, and write manual Readable/Writeable impls for Event so that we can manually fill the legacy values (I can't find a way to do it within macros).
• Just use required_vec and don't fill legacy values (seems bad).

[carlaKC]

Not sure what the project's philosophy is for backwards compatibility, so just gone with what I would have done in LDK - happy to do something else if it's preferred!