docs(release): bump displayed version to 0.14.0 + refresh playground WASM (#170)

Post-release chores for v0.14.0, mirroring #163/#165:
- install snippets (README, docs/ask.md, docs/embedding.md) 0.13 -> 0.14
- site displayed version (web/src/lib/site.ts) 0.14.0
- vendored playground bundle rebuilt from the v0.14.0 engine, picking
  up SQLR-2 / SQLR-14 / SQLR-15 scope validation (JS bindings
  unchanged — no API delta, binary only)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Author: joaoh82

README.md

@@ -214,8 +214,8 @@ Expressions in `WHERE` and `UPDATE`'s `SET` RHS:
 
 ```toml
 [dependencies]
-sqlrite-engine = "0.13"
-sqlrite-ask    = "0.13"
+sqlrite-engine = "0.14"
+sqlrite-ask    = "0.14"
 ```
 
 ```rust

docs/ask.md

@@ -131,8 +131,8 @@ If `SQLRITE_LLM_API_KEY` is missing, the panel surfaces a clean "missing API key
 
 ```toml
 [dependencies]
-sqlrite-engine = "0.13"
-sqlrite-ask    = "0.13"
+sqlrite-engine = "0.14"
+sqlrite-ask    = "0.14"
 ```
 
 ```rust

docs/embedding.md

@@ -153,8 +153,8 @@ The retryable-error branch is the headline new flow: pick a backoff policy that
 [dependencies]
 # `ask` is a default feature on sqlrite-engine; opt out with
 # default-features = false if you don't want the LLM stack pulled in.
-sqlrite-engine = "0.13"
-sqlrite-ask    = "0.13"
+sqlrite-engine = "0.14"
+sqlrite-ask    = "0.14"
 ```
 
 ```rust

sdk/wasm/Cargo.lock

@@ -1,7 +1,7 @@
 export const SITE = {
   url: "https://sqlritedb.com",
   twitterHandle: "@CodePolyglot",
-  version: "0.13.0",
+  version: "0.14.0",
   repo: "https://github.com/joaoh82/rust_sqlite",
   discord: "https://discord.gg/dHPmw89zAE",
   docsRs: "https://docs.rs/sqlrite-engine",