fix(ebpf): use TC_ACT_UNSPEC instead of TC_ACT_PIPE for TC classifier

Align cls_bpf pass-through with TC_ACT_UNSPEC across shared ingress/egress,
DNS sampling, and traffic accounting. Update process_module_result to treat
TC_ACT_UNSPEC as the neutral continue verdict.

Add optional pagination to connection flows HTTP API

- When query includes page, page_size, or limit, return PagedConnectionFlowsResponse (items, total, page, page_size, total_pages).

- Slice after the existing in-memory filter path; omit pagination params to keep the legacy array response.

- Accept limit as an alias for page_size; clamp page_size to 1..=1000.

- Bump crate version to 0.12.8.

feat: add uplink and wifi_channel fields, improve connection type det…

…ection

- Add uplink field: device's bridge interface name (eth1, lan2, phy0-ap0)
- Add wifi_channel field: WiFi channel for wireless devices, 0 for wired
- Add bridge port map (brctl showmacs + sysfs) and WiFi channel map (iw dev info)
- Improve connection_type: prefer bridge port map over hostapd-based fallback
- Add resolve_connection_type() for unified wifi/wired detection

Make rustup installation non-interactive with -y flag

Add DNS persistent storage and refactor command line arguments

This commit introduces DNS query persistence to disk and refactors command line arguments for better consistency across modules.

Key changes:
- Add DNS storage functionality with JSONL format for queries
- Implement periodic flush and shutdown save for DNS records
- Rename traffic args: traffic_retention_seconds -> traffic_realtime_window, traffic_persist_interval_seconds -> traffic_flush_interval, traffic_persist_history -> traffic_enable_storage
- Add dns_enable_storage and dns_flush_interval arguments
- Extract boot time and timestamp conversion utilities to time_utils module
- Load DNS records from storage on startup when persistence is enabled

Use specific musl cross-compiler toolchain for x86_64 target

Specify full path to x86_64-linux-musl-gcc instead of relying on
system musl-gcc to ensure consistent build environment.

Merge pull request #16 from timsaya/dev

Dev

Merge pull request #14 from timsaya/dev

Dev

Merge branch 'dev'

Merge pull request #8 from timsaya/dev

Bump version to 0.12.0