feat: initial setup with source, CI, README, and LICENSE

Author: dragon3

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
+        with:
+          toolchain: stable
+      - run: cargo check
+
+  clippy:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
+        with:
+          toolchain: stable
+          components: clippy
+      - run: cargo clippy -- -D warnings
+
+  fmt:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
+        with:
+          toolchain: stable
+          components: rustfmt
+      - run: cargo fmt --check
+
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # stable
+        with:
+          toolchain: stable
+      - run: cargo test --lib

.gitignore

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+/target
+Cargo.lock

Cargo.toml

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+[package]
+name = "cloud-sql-connector"
+version = "0.1.0"
+edition = "2024"
+description = "Cloud SQL connector for Rust"
+license = "MIT"
+repository = "https://github.com/tailor-platform/cloud-sql-connector-rs"
+
+[dependencies]
+gcp_auth = "0.12.6"
+reqwest = { version = "0.13.0", features = ["json", "rustls"], default-features = false }
+rustls = { version = "0.23.28", default-features = false, features = ["ring", "std"] }
+rustls-pemfile = "2.2.0"
+tokio-rustls = "0.26.4"
+tokio-postgres = "0.7.15"
+deadpool = "0.12.3"
+rsa = "0.9.9"
+rand = "0.10.0"
+rand_core = "0.6"
+pkcs8 = { version = "0.10.2", features = ["pem"] }
+tokio = { version = "1.49.0", features = ["rt", "time", "sync", "macros"] }
+arc-swap = "1.7.1"
+thiserror = "2.0.17"
+tracing = "0.1.41"
+serde = { version = "1.0.228", features = ["derive"] }
+serde_json = "1.0.149"
+chrono = { version = "0.4.42", features = ["serde"] }
+x509-parser = "0.18.0"

LICENSE

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+MIT License
+
+Copyright (c) 2026 Tailor Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# cloud-sql-connector
+
+A Rust connector for [Google Cloud SQL](https://cloud.google.com/sql). Provides secure, authenticated connections to Cloud SQL instances using IAM authentication and automatic certificate management.
+
+## Features
+
+- Automatic TLS certificate management with background refresh
+- IAM-based authentication
+- Connection pooling via [deadpool](https://crates.io/crates/deadpool)
+- Support for both public and private IP connections
+
+## Usage
+
+```rust
+use cloud_sql_connector::{CloudSqlConfig, CloudSqlConnector};
+
+let config = CloudSqlConfig::new("my-project:us-central1:my-instance")
+    .with_iam_auth(true);
+
+let connector = CloudSqlConnector::new(config).await?;
+let pool = connector.create_pool("my_database", "my_user", None)?;
+let conn = pool.get().await?;
+```
+
+## License
+
+MIT