feat: Replace banner with fun tagline, add build date and --license flag

Condense the two-line banner into a single personality-driven line with
compile-time build date. Move the BSD-3-Clause copyright notice to a
dedicated --license flag. Enhance --version to show build date and author.

Author: graemeg

src/main/pascal/PasBuild.CLI.pas

@@ -19,10 +19,11 @@ interface
 
 const
   PASBUILD_VERSION = {$I version.inc};
+  PASBUILD_BUILD_DATE = {$I %DATE%};
 
 type
   { Valid build goals }
-  TBuildGoal = (bgUnknown, bgClean, bgProcessResources, bgCompile, bgProcessTestResources, bgTestCompile, bgTest, bgPackage, bgSourcePackage, bgInstall, bgInit, bgHelp, bgVersion);
+  TBuildGoal = (bgUnknown, bgClean, bgProcessResources, bgCompile, bgProcessTestResources, bgTestCompile, bgTest, bgPackage, bgSourcePackage, bgInstall, bgInit, bgHelp, bgVersion, bgLicense);
 
   { Parsed command-line arguments }
   TCommandLineArgs = record
@@ -33,6 +34,7 @@   TCommandLineArgs = record
     FPCExecutable: string;  // Custom FPC compiler path (empty = default 'fpc')
     ShowHelp: Boolean;
     ShowVersion: Boolean;
+    ShowLicense: Boolean;
     Verbose: Boolean;
     ErrorMessage: string;
   end;
@@ -46,6 +48,7 @@   TArgumentParser = class
     class function ParseArguments: TCommandLineArgs;
     class procedure ShowHelp;
     class procedure ShowVersion;
+    class procedure ShowLicense;
   end;
 
 implementation
@@ -85,6 +88,8 @@ class function TArgumentParser.GoalFromString(const AGoalStr: string): TBuildGoa
     Result := bgHelp
   else if GoalLower = '--version' then
     Result := bgVersion
+  else if GoalLower = '--license' then
+    Result := bgLicense
   else
     Result := bgUnknown;
 end;
@@ -104,6 +109,7 @@ class function TArgumentParser.GoalToString(AGoal: TBuildGoal): string;
     bgInit: Result := 'init';
     bgHelp: Result := '--help';
     bgVersion: Result := '--version';
+    bgLicense: Result := '--license';
     else Result := 'unknown';
   end;
 end;
@@ -123,6 +129,7 @@ class function TArgumentParser.ParseArguments: TCommandLineArgs;
   Result.FPCExecutable := '';  // Default: use 'fpc' from PATH
   Result.ShowHelp := False;
   Result.ShowVersion := False;
+  Result.ShowLicense := False;
   Result.Verbose := False;
   Result.ErrorMessage := '';
 
@@ -163,6 +170,12 @@ class function TArgumentParser.ParseArguments: TCommandLineArgs;
     Exit;
   end;
 
+  if Result.Goal = bgLicense then
+  begin
+    Result.ShowLicense := True;
+    Exit;
+  end;
+
   // Validate goal
   if Result.Goal = bgUnknown then
   begin
@@ -262,6 +275,7 @@ class procedure TArgumentParser.ShowHelp;
   WriteLn('  -v, --verbose                Show full compiler output');
   WriteLn('  -h, --help                   Show this help message');
   WriteLn('  --version                    Show version information');
+  WriteLn('  --license                    Show license information');
   WriteLn;
   WriteLn('Examples:');
   WriteLn('  pasbuild compile                      # Build with default settings');
@@ -283,6 +297,8 @@ class procedure TArgumentParser.ShowVersion;
 begin
   WriteLn('PasBuild version ', PASBUILD_VERSION);
   WriteLn('Build automation tool for Free Pascal projects');
+  WriteLn('Built: ', PASBUILD_BUILD_DATE);
+  WriteLn('Author: Graeme Geldenhuys');
   WriteLn;
 
   // Show which FPC is being used and its version
@@ -291,4 +307,37 @@ class procedure TArgumentParser.ShowVersion;
   WriteLn;
 end;
 
+class procedure TArgumentParser.ShowLicense;
+begin
+  WriteLn('BSD 3-Clause License');
+  WriteLn;
+  WriteLn('Copyright (c) 2025 - Graeme Geldenhuys <graemeg@gmail.com>');
+  WriteLn;
+  WriteLn('Redistribution and use in source and binary forms, with or without');
+  WriteLn('modification, are permitted provided that the following conditions are met:');
+  WriteLn;
+  WriteLn('1. Redistributions of source code must retain the above copyright notice, this');
+  WriteLn('   list of conditions and the following disclaimer.');
+  WriteLn;
+  WriteLn('2. Redistributions in binary form must reproduce the above copyright notice,');
+  WriteLn('   this list of conditions and the following disclaimer in the documentation');
+  WriteLn('   and/or other materials provided with the distribution.');
+  WriteLn;
+  WriteLn('3. Neither the name of the copyright holder nor the names of its');
+  WriteLn('   contributors may be used to endorse or promote products derived from');
+  WriteLn('   this software without specific prior written permission.');
+  WriteLn;
+  WriteLn('THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"');
+  WriteLn('AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE');
+  WriteLn('IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE');
+  WriteLn('DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE');
+  WriteLn('FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL');
+  WriteLn('DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR');
+  WriteLn('SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER');
+  WriteLn('CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,');
+  WriteLn('OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE');
+  WriteLn('OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.');
+  WriteLn;
+end;
+
 end.

src/main/pascal/PasBuild.pas

@@ -49,9 +49,7 @@
   ProjectDir, OriginalDir: string;
 
 begin
-  WriteLn('[INFO] PasBuild ', PASBUILD_VERSION);
-  WriteLn('[INFO] Copyright (c) 2025 by Graeme Geldenhuys');
-  WriteLn;
+  WriteLn('[INFO] PasBuild ', PASBUILD_VERSION, ' — Born ', PASBUILD_BUILD_DATE, '. Raised by Graeme Geldenhuys.');
 
   // Parse command line arguments
   Args := TArgumentParser.ParseArguments;
@@ -92,6 +90,14 @@
     Exit;
   end;
 
+  // Handle license
+  if Args.ShowLicense then
+  begin
+    TArgumentParser.ShowLicense;
+    ExitCode := 0;
+    Exit;
+  end;
+
   // Resolve project file path and change to its directory.
   // This allows running pasbuild from any directory using -f flag,
   // e.g.: pasbuild compile -f ../../../project.xml