Revamp questionnaire, parallelize run-all, add new tasks

- Replace 6 compound Likert questions with 12 atomic ones grouped by
  dimension (syntax, expressiveness, data/IO, errors, overall); drop
  free-form question. Responses now stored as ints, not strings.
- Back-compat layer maps legacy keys to new dimensions so existing
  results still render.
- Parallelize run-all with ThreadPoolExecutor (configurable workers)
  and add a thread-safe min-request-interval rate limiter to the
  Anthropic provider.
- Add new tasks: path_normalizer, todo_manager, currency_converter,
  locale_weather_url, network_info_parser, url_normalizer.

tasks/pipeline/network_info_parser.toml

@@ -0,0 +1,86 @@
+name = "network_info_parser"
+category = "pipeline"
+mode = "convert"
+description = """
+Parse network interface configuration from stdin (in "ip addr show" format)
+and extract a summary of each interface.
+
+For each interface block, output a line:
+  IFACE: <name> IP: <ipv4_addr> MASK: /<prefix_len>
+
+An interface block starts with a line like:
+  2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 ...
+and contains inet lines like:
+  inet 192.168.1.100/24 brd 192.168.1.255 scope global eth0
+
+If an interface has no inet line, output:
+  IFACE: <name> IP: none MASK: none
+
+Skip the loopback interface (lo).
+"""
+
+bash_source = '''
+#!/bin/bash
+
+current_iface=""
+found_ip=""
+found_mask=""
+
+flush_iface() {
+  if [[ -n "$current_iface" && "$current_iface" != "lo" ]]; then
+    if [[ -n "$found_ip" ]]; then
+      echo "IFACE: $current_iface IP: $found_ip MASK: /$found_mask"
+    else
+      echo "IFACE: $current_iface IP: none MASK: none"
+    fi
+  fi
+}
+
+while IFS= read -r line || [[ -n "$line" ]]; do
+  # Detect interface line: starts with a number followed by colon
+  if echo "$line" | grep -qE '^[0-9]+:'; then
+    flush_iface
+    current_iface=$(echo "$line" | awk -F: '{print $2}' | sed 's/^[[:space:]]*//' | awk '{print $1}')
+    found_ip=""
+    found_mask=""
+  fi
+
+  # Detect inet line (IPv4 only, not inet6)
+  if echo "$line" | grep -qE '^[[:space:]]+inet [0-9]'; then
+    ip_cidr=$(echo "$line" | awk '{print $2}')
+    found_ip=$(echo "$ip_cidr" | cut -d/ -f1)
+    found_mask=$(echo "$ip_cidr" | cut -d/ -f2)
+  fi
+done
+
+flush_iface
+'''
+
+[[test_cases]]
+description = "Two interfaces with IPs"
+stdin = """1: lo: <LOOPBACK,UP> mtu 65536
+    inet 127.0.0.1/8 scope host lo
+2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500
+    inet 192.168.1.100/24 brd 192.168.1.255 scope global eth0
+3: wlan0: <BROADCAST,MULTICAST,UP> mtu 1500
+    inet 10.0.0.42/16 brd 10.0.255.255 scope global wlan0"""
+expected_stdout = """IFACE: eth0 IP: 192.168.1.100 MASK: /24
+IFACE: wlan0 IP: 10.0.0.42 MASK: /16"""
+
+[[test_cases]]
+description = "Interface with no IP"
+stdin = """1: lo: <LOOPBACK,UP> mtu 65536
+    inet 127.0.0.1/8 scope host lo
+2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500
+3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500
+    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0"""
+expected_stdout = """IFACE: eth0 IP: none MASK: none
+IFACE: docker0 IP: 172.17.0.1 MASK: /16"""
+
+[[test_cases]]
+description = "Single interface"
+stdin = """1: lo: <LOOPBACK,UP> mtu 65536
+    inet 127.0.0.1/8 scope host lo
+2: enp3s0: <BROADCAST,MULTICAST,UP> mtu 9000
+    inet 10.10.10.5/8 brd 10.255.255.255 scope global enp3s0"""
+expected_stdout = "IFACE: enp3s0 IP: 10.10.10.5 MASK: /8"