docs: add French (fr-FR) and German (de-DE) translations

[JesusMP22]

Documentation Translations

Added README translations for:

• French (fr-FR) — docs/fr-FR/README.md
• German (de-DE) — docs/de-DE/README.md

Following the same format as existing translations.

Wallet: jesusmp

[github-actions]

Welcome to RustChain! Thanks for your first pull request.

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• Non-doc PRs have a BCOS-L1 or BCOS-L2 label
• Doc-only PRs are exempt from BCOS tier labels when they only touch docs/**, *.md, or common image/PDF files
• New code files include an SPDX license header
• You've tested your changes against the live node

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[huhaha120]

Thanks for the contribution. I am requesting changes because the FreeBSD installer path currently cannot complete a clean install, and the service/docs do not line up with the miner CLI that exists in this repository.

I found three blocking issues:

• the installer downloads a miner path that is not present on main, so curl -fsSL exits under set -e before installation completes;
• the rc.d service does not pass or load the wallet configured during install, so the service will not mine to the requested wallet;
• the FreeBSD docs show a --node CLI flag that the current miner parser does not support.

These should be fixed before merging so users do not follow a one-line installer that fails or starts mining with the wrong configuration.

[huhaha120]

Blocking for FreeBSD users: /bin/bash is not available in a base FreeBSD install, and when bash is installed from packages it is normally /usr/local/bin/bash. The documented install commands also pipe into bash, so a clean FreeBSD host can fail before any dependency installation runs. Either make this script POSIX /bin/sh compatible, or document/bootstrap pkg install bash before users invoke it.

[huhaha120]

Blocking: this URL currently points at miners/rustchain_miner.py, which does not exist on main and is not added by this PR. Because the script runs with set -euo pipefail, curl -fsSL ... -o rustchain_miner.py exits here and the installer never creates or starts the rc.d service. Please point this at an existing FreeBSD-compatible miner artifact, or add the artifact and any required companion files such as fingerprint_checks.py/checksums.

[huhaha120]

Blocking: the installer writes /opt/rustchain/config.env, but the generated rc.d script never sources it and this command does not pass --wallet. The current miner CLI accepts --wallet and otherwise falls back to generating its own wallet, so service rustchain_miner start will not use the ${WALLET_NAME} supplied to the installer. Please load/export the config in the rc.d script or pass the wallet explicitly in command_args.

[huhaha120]

Docs mismatch: the current miner parser in miners/linux/rustchain_linux_miner.py exposes --wallet, dry-run/show-payload options, and Warthog options, but no --node flag. This command will fail with an unrecognized argument unless this PR also adds a FreeBSD miner implementation that supports --node.

[jaxint]

Great contribution! 🔍 Reviewed and looks solid.

[jaxint]

LGTM! Thanks for contributing to RustChain. Approved.

[jaxint]

Solid PR! The changes are well-thought-out and the code quality is high.

[Scottcjn]

Closing as superseded by #6776, which is the superset of this translation batch (same languages plus more). Consolidating to one PR keeps review clean — thanks @JesusMP22.