feat: migrate configuration from custom format to YAML

- Replace custom directive-based config parser with YAML using gopkg.in/yaml.v3
- Rename config.example.conf to config.example.yml with YAML syntax
- Update default config path to /etc/logcorrelator/logcorrelator.yml
- Update Dockerfile.package to copy YAML config files
- Update packaging scripts to install logcorrelator.yml
- Update architecture.yml to document YAML configuration
- Add yaml.v3 dependency to go.mod

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

architecture.yml

@@ -21,11 +21,11 @@ runtime:
     unit_type: systemd
     description: >
       logcorrelator est livré sous forme de binaire autonome, exécuté comme un
-      service systemd. L’unité systemd assure le démarrage automatique au boot,
-      le redémarrage en cas de crash, et une intégration standard dans l’écosystème
+      service systemd. L'unité systemd assure le démarrage automatique au boot,
+      le redémarrage en cas de crash, et une intégration standard dans l'écosystème
       Linux (notamment sur Rocky Linux 8+).
     binary_path: /usr/bin/logcorrelator
-    config_path: /etc/logcorrelator/logcorrelator.toml
+    config_path: /etc/logcorrelator/logcorrelator.yml
     user: logcorrelator
     group: logcorrelator
     restart: on-failure
@@ -40,7 +40,7 @@ runtime:
         Type=simple
         User=logcorrelator
         Group=logcorrelator
-        ExecStart=/usr/bin/logcorrelator -config /etc/logcorrelator/logcorrelator.toml
+        ExecStart=/usr/bin/logcorrelator -config /etc/logcorrelator/logcorrelator.yml
         Restart=on-failure
         RestartSec=5
 
@@ -68,51 +68,53 @@ runtime:
       de drop), ferme les connexions ClickHouse puis s’arrête.
 
 config:
-  format: toml
-  location: /etc/logcorrelator/logcorrelator.toml
+  format: yaml
+  location: /etc/logcorrelator/logcorrelator.yml
   description: >
-    Toute la configuration est centralisée dans un fichier TOML lisible, stocké
-    dans /etc/logcorrelator. Ni YAML ni JSON ne sont utilisés pour la config.
+    Toute la configuration est centralisée dans un fichier YAML lisible,
+    stocké dans /etc/logcorrelator.
   reload_strategy: restart_service
   example: |
-    [service]
-    name = "logcorrelator"
-    language = "go"
+    # Service configuration
+    service:
+      name: logcorrelator
+      language: go
 
-    [[inputs.unix_sockets]]
-    name = "apache_source"
-    path = "/var/run/logcorrelator/apache.sock"
-    format = "json"
+    # Input sources (at least 2 required)
+    inputs:
+      unix_sockets:
+        - name: apache_source
+          path: /var/run/logcorrelator/apache.sock
+          format: json
+        - name: network_source
+          path: /var/run/logcorrelator/network.sock
+          format: json
 
-    [[inputs.unix_sockets]]
-    name = "network_source"
-    path = "/var/run/logcorrelator/network.sock"
-    format = "json"
+    # File output
+    outputs:
+      file:
+        enabled: true
+        path: /var/log/logcorrelator/correlated.log
 
-    [outputs.file]
-    enabled = true
-    path = "/var/log/logcorrelator/correlated.log"
+    # ClickHouse output
+    outputs:
+      clickhouse:
+        enabled: false
+        dsn: clickhouse://user:pass@localhost:9000/db
+        table: correlated_logs_http_network
+        batch_size: 500
 
-    [outputs.clickhouse]
-    enabled = true
-    dsn = "clickhouse://user:pass@host:9000/db"
-    table = "correlated_logs_http_network"
-    batch_size = 500
-    flush_interval_ms = 200
-    max_buffer_size = 5000
-    drop_on_overflow = true
-    async_insert = true
-
-    [correlation]
-    key = ["src_ip", "src_port"]
-
-    [correlation.time_window]
-    value = 1
-    unit = "s"
-
-    [correlation.orphan_policy]
-    apache_always_emit = true
-    network_emit = false
+    # Correlation configuration
+    correlation:
+      key:
+        - src_ip
+        - src_port
+      time_window:
+        value: 1
+        unit: s
+      orphan_policy:
+        apache_always_emit: true
+        network_emit: false
 
 inputs:
   description: >
@@ -503,12 +505,12 @@ packaging:
       dest: /usr/bin/logcorrelator
       mode: "0755"
     config:
-      - source: config.example.conf
-        dest: /etc/logcorrelator/logcorrelator.conf
+      - source: config.example.yml
+        dest: /etc/logcorrelator/logcorrelator.yml
         mode: "0640"
         config_file: true
-      - source: config.example.conf
-        dest: /usr/share/logcorrelator/logcorrelator.conf.example
+      - source: config.example.yml
+        dest: /usr/share/logcorrelator/logcorrelator.yml.example
         mode: "0640"
     directories:
       - path: /var/log/logcorrelator