Drop vendored Logger/LoggerFactory wrapper; use SLF4J + Logback directly

The OSInfo resync from xerial/sqlite-jdbc brought a same-package
Logger / LoggerFactory pair that re-implemented a tiny SLF4J facade.
For this project that wrapper is dead weight: depending on slf4j-api
directly and shipping logback-classic at runtime scope gives the same
behaviour with no hand-maintained code.

Changes:

- Delete src/main/java/net/ladenthin/llama/Logger.java
- Delete src/main/java/net/ladenthin/llama/LoggerFactory.java
- OSInfo.java: import org.slf4j.Logger / org.slf4j.LoggerFactory
  directly. Drop the Supplier<String> lazy form at the two
  LogHolder.logger call sites in getHardwareName() and
  resolveArmArchType() (both messages are constant strings, so eager
  construction is free). Header comment lists this as a third
  documented deviation from the upstream sqlite-jdbc file.
- pom.xml: slf4j-api 2.0.18 -> non-optional (compile). Add
  logback-classic 1.5.32 at runtime scope as the default binding.

AndroidSignatureIgnore.java is kept as-is — it is a marker annotation,
not a logging shim, and removing it would add a 4th deviation from
upstream for no gain.

Verified:
- mvn clean compile: BUILD SUCCESS
- mvn test -Dtest=OSInfoTest,LlamaLoaderTest: 37/37 pass
- mvn dependency:tree: slf4j-api:compile, logback-classic:runtime,
  logback-core:runtime (transitive). No duplicate binding.
- reuse lint: 138/138 files compliant with REUSE 3.3.

Author: claude

pom.xml

@@ -73,13 +73,19 @@ SPDX-License-Identifier: MIT
 			<artifactId>jackson-databind</artifactId>
 			<version>2.21.3</version>
 		</dependency>
-		<!-- Required by the vendored OSInfo/LoggerFactory (from xerial/sqlite-jdbc).
-		     Optional: LoggerFactory falls back to java.util.logging when SLF4J is absent at runtime. -->
+		<!-- Required by OSInfo (vendored from xerial/sqlite-jdbc) for log emission. -->
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
 			<version>2.0.18</version>
-			<optional>true</optional>
+		</dependency>
+		<!-- Default SLF4J binding shipped with this library. Runtime scope: not
+		     required on the compile classpath, only loaded at JVM startup. -->
+		<dependency>
+			<groupId>ch.qos.logback</groupId>
+			<artifactId>logback-classic</artifactId>
+			<version>1.5.32</version>
+			<scope>runtime</scope>
 		</dependency>
 	</dependencies>
 

src/main/java/net/ladenthin/llama/Logger.java

@@ -27,6 +27,10 @@
 //   1. package org.sqlite.util  ->  package net.ladenthin.llama
 //   2. system property "org.sqlite.osinfo.architecture"
 //      ->  "net.ladenthin.llama.osinfo.architecture"
+//   3. internal Logger / LoggerFactory (sqlite-jdbc's same-package
+//      wrapper)  ->  org.slf4j.Logger / org.slf4j.LoggerFactory
+//      and drop the Supplier<String> lazy form (the two messages
+//      are constant strings, so eager construction is free).
 // The original Apache-2.0 copyright header from the upstream file is
 // preserved verbatim below.
 
@@ -65,6 +69,9 @@
 import java.util.Locale;
 import java.util.stream.Stream;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 /**
  * Provides OS name and architecture name.
  *
@@ -212,7 +219,7 @@ static String getHardwareName() {
         try {
             return processRunner.runAndWaitFor("uname -m");
         } catch (Throwable e) {
-            LogHolder.logger.error(() -> "Error while running uname -m", e);
+            LogHolder.logger.error("Error while running uname -m", e);
             return "unknown";
         }
     }
@@ -280,8 +287,7 @@ static String resolveArmArchType() {
                     }
                 } else {
                     LogHolder.logger.warn(
-                            () ->
-                                    "readelf not found. Cannot check if running on an armhf system, armel architecture will be presumed");
+                            "readelf not found. Cannot check if running on an armhf system, armel architecture will be presumed");
                 }
             } catch (IOException | InterruptedException e) {
                 // ignored: fall back to "arm" arch (soft-float ABI)