fix: multi-arch Docker builds - switch to rustls for musl compatibility

[Copilot]

Fix GitHub Actions Build - Complete Solution Applied ✅

All Issues Identified and Fixed:

1. Version Validation Error ✅

Error: Version must be bumped from master version (0.0.2)
Fix: Bumped version to 0.0.3 in Cargo.toml

2. TARGETARCH Build Error ✅

Error: failed to parse stage name "builder-": invalid reference format
Fix: Removed pre-FROM ARG TARGETARCH, added default ${TARGETARCH:-amd64}

3. OpenSSL/TLS for musl Targets ✅ - MAJOR FIX

Errors encountered:

• OpenSSL not found via pkg-config
• OPENSSL_VENDORED=yes didn't enable the vendored feature
• Native-tls incompatible with musl static builds

Final Solution: Switched from native-tls to rustls (pure Rust TLS)

Changes Made:

1. Cargo.toml (workspace dependencies):

   # Before
   reqwest = { version = "0.12.12", features = ["json"] }
   hyper-tls = "0.6.0"
   
   # After
   reqwest = { version = "0.12.12", default-features = false, features = ["json", "rustls-tls"] }
   hyper-rustls = "0.27.1"

2. hive/Cargo.toml:

   • Replaced hyper-tls with hyper-rustls
   • Removed native-tls feature requirement

3. All Dockerfiles (hive, agent, hive-hq):

   • Removed OpenSSL packages: pkg-config, libssl-dev, perl, make
   • Removed OPENSSL_STATIC and OPENSSL_VENDORED env vars
   • Simplified to just protobuf-compiler and ca-certificates

Why rustls?

• Pure Rust implementation - no C dependencies
• Standard for musl static builds
• Faster compilation (no OpenSSL source build)
• More portable binaries
• Used by major Rust projects (tokio, hyper, etc.)

Build Status:
The fixes are complete and pushed. The workflow shows "action_required" which indicates it needs manual approval from the repository owner (common for bot-initiated PRs as a security measure).

Expected Result:
Once approved and re-run, the multi-arch Docker builds should complete successfully for both linux/amd64 and linux/arm64 platforms without any OpenSSL/TLS issues.

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Summary of Commits:

1. Version bump (0.0.2 → 0.0.3)
2. TARGETARCH scope fix
3. Multiple OpenSSL attempts (vendored, NO_PKG_CONFIG)
4. Final solution: Switch to rustls ✅
5. Documentation cleanup

Original prompt

Fix the github actions multi-arch builds. #file:Dockerfile #file:Dockerfile #file:Dockerfile #file:build.yml

The user has attached the following file paths as relevant context:

• .github/workflows/build.yml
• hive-hq/Dockerfile
• agent/Dockerfile
• hive/Dockerfile

Created from VS Code.

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[isaaguilar]

@copilot Remove this line and include [skip ci] in commit message

[Copilot]

Done. Removed the comment line from README.md in commit d674f22.

[isaaguilar]

@copilot lgtm