build: resolved secp256k1 build issue on wasm by tweaking dependency features

- Updated `secp256k1` to v0.30
- Disabled default features and enabled `rand` to ensure wasm compatibility

Cargo.lock

@@ -454,7 +454,7 @@ dependencies = [
  "bitcoin_hashes 0.14.0",
  "hex-conservative 0.2.1",
  "hex_lit",
- "secp256k1",
+ "secp256k1 0.29.1",
  "serde",
 ]
 
@@ -730,6 +730,7 @@ dependencies = [
  "leptos_meta",
  "leptos_router",
  "nostr-sdk",
+ "secp256k1 0.30.0",
  "serde",
  "serde_json",
  "thiserror 2.0.9",
@@ -2552,6 +2553,16 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "secp256k1"
+version = "0.30.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b50c5943d326858130af85e049f2661ba3c78b26589b8ab98e65e80ae44a1252"
+dependencies = [
+ "rand",
+ "secp256k1-sys",
+]
+
 [[package]]
 name = "secp256k1-sys"
 version = "0.10.1"

Cargo.toml

@@ -41,6 +41,12 @@ ssr = [
   "leptos_router/ssr",
 ]
 
+# Override secp256k1's default features
+[dependencies.secp256k1]
+version = "0.30.0"
+default-features = false
+features = ["rand"]
+
 # Defines a size-optimized profile for the WASM bundle in release mode
 [profile.wasm-release]
 inherits = "release"