Modular refactor v1.1 (lib/ + per-tool modules, CI, docs)

[WhiteMuush]

Summary

This PR restructures the project from a single 1022-line feedyourspider.sh into a thin orchestrator over a lib/ of helpers and per-tool modules, and adds the supporting open-source machinery (CI, contribution docs, issue/PR templates).

Functionality is preserved end-to-end: same 10 tools, same menu numbering, same prompts, same output paths under $HOME/feedyourspider_<tool>/.

What changes

• Code structure

  • feedyourspider.sh shrinks to ~80 lines: sources lib/, dispatches menu choices to <tool>_run functions.
  • lib/core.sh — TTY-aware color setup (no more polluted pipes), constants, output-dir helpers.
  • lib/installer.sh — logging (log_step/log_info/log_warn/log_error/log_success), prompts (prompt_value/prompt_choice/prompt_yesno), and a single ensure_command / install_package pair that collapses ~400 lines of duplicated command -v / apt-get / dnf / brew boilerplate into one dispatcher.
  • lib/ui.sh — ASCII banner, centered title screen, side-by-side renderer.
  • lib/modules/<tool>.sh — one ~30-line file per tool (nmap, netcat, tcpdump, tshark, hping3, arpscan, masscan, nikto, dnsenum, whatweb).

• Bug fixes during the split

  • Fragile IFS=$'\n' read -r -d '' -a pattern replaced with mapfile -t (UI) and read -ra (custom-args parsing).
  • tput color setup now guarded by [[ -t 1 ]] so colors do not leak into pipes / CI logs.
  • Menu spacing inconsistency ([0]Exit vs [1] Nmap) fixed.
  • Stale/misleading comment about a "duplicate menu index" removed.
  • Duplicated header block (between the title screen and the menu) consolidated into one helper.

• Open-source machinery

  • GPL-3.0 LICENSE, .gitignore, .editorconfig.
  • GitHub Actions CI: shellcheck (warning severity), bash -n syntax check on every *.sh, and a smoke test that sources the whole lib/ chain and asserts every expected function is defined.
  • Issue templates (bug report, tool request) in YAML form, blank issues disabled, PR template with a contribution checklist.
  • CONTRIBUTING.md, CODE_OF_CONDUCT.md (Contributor Covenant v2.1 by reference), SECURITY.md (wrapper-scope disclosure policy).
  • docs/ARCHITECTURE.md (boot sequence, cross-cutting helpers) and docs/ADDING_A_TOOL.md (4-step recipe to add a new module).
  • README refreshed with badges, Project Layout, and contribution links.

Compatibility

• No CLI flags removed or renamed.
• Output directory layout ($HOME/feedyourspider_<tool>/) preserved, with a new optional FEEDYOURSPIDER_OUTPUT_ROOT env var to redirect everything under a single sandbox dir.
• All code, comments, prompts, and docs are in English.

Test plan

• bash -n passes on every *.sh (also covered by the new CI job).
• Smoke test: source lib/core.sh, lib/installer.sh, lib/ui.sh, every lib/modules/*.sh, and verify the 27 expected functions are defined.
• Run ./feedyourspider.sh on a Linux box and exercise at least one menu entry per category (scan / capture / fingerprint).
• CI green on this PR before merge.