Add Github workflows for test, fmt, clippy, PR and Issue templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: 'bug'
+assignees: ''
+
+---
+
+**Describe the bug**  
+<!-- A clear and concise description of what the bug is. -->
+
+**To Reproduce**  
+<!-- Steps or code to reproduce the behavior. -->
+
+**Expected behavior**  
+<!-- A clear and concise description of what you expected to happen. -->
+
+**Build environment**  
+ - BDK-RPC-CLIENT tag/commit: <!-- e.g. v0.13.0, 3a07614 -->
+ - OS+version: <!-- e.g. ubuntu 20.04.01, macOS 12.0.1, windows -->  
+ - Rust/Cargo version: <!-- e.g. 1.56.0 --> 
+ - Rust/Cargo target: <!-- e.g. x86_64-apple-darwin, x86_64-unknown-linux-gnu, etc. -->  
+
+**Additional context**  
+<!-- Add any other context about the problem here. --> 

.github/ISSUE_TEMPLATE/enhancement_request.md

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+---
+name: Enhancement request
+about: Request a new feature or change to an existing feature
+title: ''
+labels: 'enhancement'
+assignees: ''
+
+---
+
+**Describe the enhancement**  
+<!-- A clear and concise description of what you would like added or changed. -->
+
+**Use case**  
+<!-- Tell us how you or others will use this new feature or change to an existing feature. --> 
+
+**Additional context**
+<!-- Add any other context about the enhancement here. --> 

.github/ISSUE_TEMPLATE/minor_release.md

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+---
+name: Minor Release
+about: Create a new minor release [for release managers only]
+title: 'Release MAJOR.MINOR+1.0'
+labels: 'release'
+assignees: ''
+
+---
+
+## Create a new minor release
+
+### Summary
+
+<--release summary to be used in announcements-->
+
+### Commit
+
+<--latest commit ID to include in this release-->
+
+### Changelog
+
+<--add notices from PRs merged since the prior release, see ["keep a changelog"]-->
+
+### Checklist
+
+Release numbering must follow [Semantic Versioning]. These steps assume the current `master`
+branch **development** version is *MAJOR.MINOR.0*.
+
+#### On the day of the feature freeze
+
+Change the `master` branch to the next MINOR+1 version:
+
+- [ ] Switch to the `master` branch.
+- [ ] Create a new PR branch called `bump_dev_MAJOR_MINOR+1`, eg. `bump_dev_0_22`.
+- [ ] Bump the `bump_dev_MAJOR_MINOR+1` branch to the next development MINOR+1 version.
+  - Change the `Cargo.toml` version value to `MAJOR.MINOR+1.0`.
+  - The commit message should be "Bump version to MAJOR.MINOR+1.0".
+- [ ] Create PR and merge the `bump_dev_MAJOR_MINOR+1` branch to `master`.
+  - Title PR "Bump version to MAJOR.MINOR+1.0".
+
+#### On the day of the release
+
+Tag and publish new release:
+
+- [ ] Double check that your local `master` is up-to-date with the upstream repo.
+- [ ] Create a new branch called `release/MAJOR.MINOR+1` from `master`.
+- [ ] Add a tag to the `HEAD` commit in the `release/MAJOR.MINOR+1` branch.
+  - The tag name should be `vMAJOR.MINOR+1.0`
+  - The first line of the tag message should be "Release MAJOR.MINOR+1.0".
+  - In the body of the tag message put a copy of the **Summary** and **Changelog** for the release.
+  - Make sure the tag is signed, for extra safety use the explicit `--sign` flag.
+- [ ] Wait for the CI to finish one last time.
+- [ ] Push the new tag to the `bitcoindevkit/bdk_rpc_client` repo.
+- [ ] Publish **all** the updated crates to crates.io.
+- [ ] Create the release on GitHub.
+  - Go to "tags", click on the dots on the right and select "Create Release".
+  - Set the title to `Release MAJOR.MINOR+1.0`.
+  - In the release notes body put the **Summary** and **Changelog**.
+  - Use the "+ Auto-generate release notes" button to add details from included PRs.
+  - Until we reach a `1.0.0` release check the "Pre-release" box.
+- [ ] Make sure the new release shows up on [crates.io] and that the docs are built correctly on [docs.rs].
+- [ ] Announce the release, using the **Summary**, on Discord, Twitter and Mastodon.
+- [ ] Celebrate 🎉
+
+[Semantic Versioning]: https://semver.org/
+[crates.io]: https://crates.io/crates/bdk_rpc_client
+[docs.rs]: https://docs.rs/bdk_rpc_client/latest/bdk_rpc_client
+["keep a changelog"]: https://keepachangelog.com/en/1.0.0/

.github/ISSUE_TEMPLATE/patch_release.md

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+---
+name: Patch Release
+about: Create a new patch release [for release managers only]
+title: 'Release MAJOR.MINOR.PATCH+1'
+labels: 'release'
+assignees: ''
+
+---
+
+## Create a new patch release
+
+### Summary
+
+<--release summary to be used in announcements-->
+
+### Commit
+
+<--latest commit ID to include in this release-->
+
+### Changelog
+
+<--add notices from PRs merged since the prior release, see ["keep a changelog"]-->
+
+### Checklist
+
+Release numbering must follow [Semantic Versioning]. These steps assume the current `master`
+branch **development** version is *MAJOR.MINOR.PATCH*.
+
+### On the day of the patch release
+
+Change the `master` branch to the new PATCH+1 version:
+
+- [ ] Switch to the `master` branch.
+- [ ] Create a new PR branch called `bump_dev_MAJOR_MINOR_PATCH+1`, eg. `bump_dev_0_22_1`.
+- [ ] Bump the `bump_dev_MAJOR_MINOR` branch to the next development PATCH+1 version.
+  - Change the `Cargo.toml` version value to `MAJOR.MINOR.PATCH+1`.
+  - The commit message should be "Bump version to MAJOR.MINOR.PATCH+1".
+- [ ] Create PR and merge the `bump_dev_MAJOR_MINOR_PATCH+1` branch to `master`.
+  - Title PR "Bump version to MAJOR.MINOR.PATCH+1".
+
+Cherry-pick, tag and publish new PATCH+1 release:
+
+- [ ] Merge fix PRs to the `master` branch.
+- [ ] Git cherry-pick fix commits to the `release/MAJOR.MINOR` branch to be patched.
+- [ ] Verify fixes in `release/MAJOR.MINOR` branch.
+- [ ] Bump the `release/MAJOR.MINOR.PATCH+1` branch to `MAJOR.MINOR.PATCH+1` version.
+  - Change the `Cargo.toml` version value to `MAJOR.MINOR.MINOR.PATCH+1`.
+  - The commit message should be "Bump version to MAJOR.MINOR.PATCH+1".
+- [ ] Add a tag to the `HEAD` commit in the `release/MAJOR.MINOR` branch.
+  - The tag name should be `vMAJOR.MINOR.PATCH+1`
+  - The first line of the tag message should be "Release MAJOR.MINOR.PATCH+1".
+  - In the body of the tag message put a copy of the **Summary** and **Changelog** for the release.
+  - Make sure the tag is signed, for extra safety use the explicit `--sign` flag.
+- [ ] Wait for the CI to finish one last time.
+- [ ] Push the new tag to the `bitcoindevkit/bdk_rpc_client` repo.
+- [ ] Publish **all** the updated crates to crates.io.
+- [ ] Create the release on GitHub.
+  - Go to "tags", click on the dots on the right and select "Create Release".
+  - Set the title to `Release MAJOR.MINOR.PATCH+1`.
+  - In the release notes body put the **Summary** and **Changelog**.
+  - Use the "+ Auto-generate release notes" button to add details from included PRs.
+  - Until we reach a `1.0.0` release check the "Pre-release" box.
+- [ ] Make sure the new release shows up on [crates.io] and that the docs are built correctly on [docs.rs].
+- [ ] Announce the release, using the **Summary**, on Discord, Twitter and Mastodon.
+- [ ] Celebrate 🎉
+
+[Semantic Versioning]: https://semver.org/
+[crates.io]: https://crates.io/crates/bdk_rpc_client
+[docs.rs]: https://docs.rs/bdk_rpc_client/latest/bdk_rpc_client
+["keep a changelog"]: https://keepachangelog.com/en/1.0.0/

.github/dependabot.yml

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+version: 2
+enable-beta-ecosystems: true   
+
+updates:
+
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: daily     
+      time: "03:00"       
+
+  - package-ecosystem: cargo
+    directory: "/"
+    schedule:
+      interval: weekly
+      day: monday
+      time: "04:00"
+

.github/pull_request_template.md

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+<!-- You can erase any parts of this template not applicable to your Pull Request. -->
+
+### Description
+
+<!-- Describe the purpose of this PR, what's being adding and/or fixed -->
+
+### Notes to the reviewers
+
+<!-- In this section you can include notes directed to the reviewers, like explaining why some parts
+of the PR were done in a specific way -->
+
+## Changelog notice
+
+<!-- Notice the release manager should include in the release tag message changelog -->
+<!-- See https://keepachangelog.com/en/1.0.0/ for examples -->
+
+### Checklists
+
+#### All Submissions:
+
+* [ ] I've signed all my commits
+* [ ] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
+* [ ] I ran `cargo fmt` and `cargo clippy` before committing
+
+#### New Features:
+
+* [ ] I've added tests for the new feature
+* [ ] I've added docs for the new feature
+* [ ] I've updated `CHANGELOG.md`
+
+#### Bugfixes:
+
+* [ ] This pull request breaks the existing API
+* [ ] I've added tests to reproduce the issue which are now passing
+* [ ] I'm linking the issue being fixed by this PR

.github/workflows/audit.yml

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+name: Security Audit
+
+on:
+  pull_request:
+    paths:
+      - '**/Cargo.toml'
+      - '**/Cargo.lock'
+  merge_group:
+  push:
+    branches: [master]
+    paths:
+      - '**/Cargo.toml'
+      - '**/Cargo.lock'
+  schedule:
+    # weekly
+    - cron: '0 0 * * 0'
+
+env:
+  CARGO_TERM_COLOR: always
+
+permissions:
+  contents: read               
+  security-events: write      
+  issues: write                
+
+jobs:
+  cargo-audit:
+    name: RustSec Audit (vulnerabilities)
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo registry/index/target
+        uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1
+        with:
+          cache-on-failure: true
+
+      - name: Install cargo-audit
+        run: cargo install cargo-audit --locked
+
+      - name: Run cargo audit (raw output — you will see this clearly)
+        run: cargo audit --deny warnings   
+
+      - name: Run cargo audit again for GitHub Security tab upload
+        uses: rustsec/audit-check@69366f33c96575abad1ee0dba8212ae3e3c0d700
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          deny: warnings
+
+