feat(oracles/pyth): add pinocchio example

Adds a Pinocchio implementation of the Pyth oracle example, the first pinocchio
example under oracles/. The single read_price instruction reads a Pyth pull
oracle PriceUpdateV2 account and logs its price fields.

There is no Pyth SDK for Pinocchio, so the account is parsed by hand: the
program checks the account's owner (the Pyth receiver program) and the anchor
account discriminator before trusting the data, then reads the price, confidence,
exponent, and publish time by byte offset. The account's VerificationLevel is a
variable-size Borsh enum, so the price message offset is computed from it.

The litesvm test injects a mock PriceUpdateV2 account with known values via
setAccount and asserts the program logs the parsed fields, plus a second case
that a non-Pyth-owned account is rejected.

Author: MarkFeder

Cargo.lock

@@ -73,6 +73,7 @@ members = [
     "tokens/token-2022/permanent-delegate/pinocchio/program",
     "tokens/token-2022/multiple-extensions/pinocchio/program",
     "tokens/token-2022/immutable-owner/pinocchio/program",
+    "oracles/pyth/pinocchio/program",
 ]
 resolver = "2"
 

Cargo.toml

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# This script is for quick building & deploying of the program.
+# It also serves as a reference for the commands used for building & deploying Solana programs.
+# Run this bad boy with "bash cicd.sh" or "./cicd.sh"
+
+cargo build-sbf --manifest-path=./program/Cargo.toml --sbf-out-dir=./program/target/so
+solana program deploy ./program/target/so/*.so

oracles/pyth/pinocchio/cicd.sh

@@ -0,0 +1,22 @@
+{
+  "type": "module",
+  "scripts": {
+    "test": "mocha --import=tsx -t 1000000 ./tests/test.ts",
+    "build-and-test": "cargo build-sbf --manifest-path=./program/Cargo.toml --sbf-out-dir=./tests/fixtures && pnpm test",
+    "build": "cargo build-sbf --manifest-path=./program/Cargo.toml --sbf-out-dir=./program/target/so",
+    "deploy": "solana program deploy ./program/target/so/*.so"
+  },
+  "dependencies": {
+    "@solana/kit": "^7.0.0",
+    "litesvm": "^1.3.0"
+  },
+  "devDependencies": {
+    "@types/chai": "^5.2.3",
+    "@types/mocha": "^10.0.10",
+    "@types/node": "^26.1.0",
+    "chai": "^6.2.2",
+    "mocha": "^11.7.5",
+    "typescript": "^5.9.3",
+    "tsx": "^4.19.2"
+  }
+}