Add ffi and JS wasm package

Cargo.toml

@@ -1,13 +1,16 @@
 [package]
 name = "pubky-app-specs"
-version = "0.2.1"
+version = "0.3.0"
 edition = "2021"
 description = "Pubky.app Data Model Specifications"
 homepage = "https://pubky.app"
 repository = "https://github.com/pubky/pubky-app-specs"
 license = "MIT"
 documentation = "https://github.com/pubky/pubky-app-specs"
 
+[lib]
+crate-type = ["cdylib"]
+
 [dependencies]
 serde = { version = "1.0.215", features = ["derive"] }
 serde_json = "1.0.133"
@@ -16,6 +19,9 @@ base32 = "0.5.1"
 blake3 = "1.5.4"
 mime = "0.3"
 utoipa = { git = "https://github.com/juhaku/utoipa", rev = "d522f744259dc4fde5f45d187983fb68c8167029", optional = true }
+wasm-bindgen = "0.2.99"
+serde-wasm-bindgen = "0.6.5"
+js-sys = "0.3.76"
 
 [dev-dependencies]
 pubky = "0.3.0"
@@ -25,3 +31,9 @@ tokio = { version = "1.41.1", features = ["full"] }
 
 [features]
 openapi = ["utoipa"]
+
+[profile.release]
+opt-level = "z"   # Requests maximum optimization for binary size (“z” stands for “size”), rather than speed.
+lto = true        # Enables link-time optimization, allowing the compiler to do more aggressive inlining/dead-code elimination across crates.
+codegen-units = 1 # Forces compilation into a single code-generation unit, further helping inlining and dead-code elimination at link time.
+panic = "abort"   # Ensures panics do not generate extra stack-unwinding code, reducing binary bloat. Panics will simply abort execution.

README.md

@@ -1,12 +1,18 @@
 # Pubky.app Data Model Specification
 
-_Version 0.2.1_
+_Version 0.3.0_
 
 > ⚠️ **Warning: Rapid Development Phase**  
 > This specification is in an **early development phase** and is evolving quickly. Expect frequent changes and updates as the system matures. Consider this a **v0 draft**.
 >
 > When we reach the first stable, long-term support version of the schemas, paths will adopt the format: `pubky.app/v1/` to indicate compatibility and stability.
 
+### To build the JS package
+
+```bash
+wasm-pack build --target bundler
+```
+
 ## Table of Contents
 
 1. [Introduction](#introduction)

src/common.rs

@@ -1,6 +1,6 @@
 use std::time::{SystemTime, UNIX_EPOCH};
 
-pub static VERSION: &str = "0.2.1";
+pub static VERSION: &str = "0.3.0";
 pub static APP_PATH: &str = "/pub/pubky.app/";
 pub static PROTOCOL: &str = "pubky://";