chore: add initial project scaffolding with CI, build system, and core headers

Makefile

@@ -0,0 +1,75 @@
+CC ?= gcc
+CFLAGS = -Wall -Wextra -std=c11 -O2 -g
+LDFLAGS = -lpthread -lsqlite3 -lssl -lcrypto
+
+UNAME_S := $(shell uname -s)
+ifeq ($(UNAME_S),Linux)
+    LDFLAGS += -luuid
+    CFLAGS += -D_GNU_SOURCE
+endif
+ifeq ($(UNAME_S),Darwin)
+    CFLAGS += -D_DARWIN_C_SOURCE
+endif
+
+INCLUDES = -Iinclude -Isrc
+
+COMMON_SRCS = \
+    src/platform/pal.c \
+    src/platform/file.c \
+    src/platform/time.c \
+    src/platform/memory.c \
+    src/core/config.c \
+    src/core/logging.c \
+    src/user/usermgr.c \
+    src/user/password.c
+
+SERVER_SRCS = \
+    src/main.c \
+    src/core/server.c \
+    src/http/parser.c \
+    src/http/response.c \
+    src/http/headers.c \
+    src/webdav/xml.c \
+    src/webdav/methods.c \
+    src/webdav/propfind.c \
+    src/webdav/proppatch.c \
+    src/webdav/lock.c \
+    src/storage/backend.c \
+    src/storage/properties.c \
+    src/storage/locks.c \
+    src/auth/auth.c \
+    src/concurrency/threadpool.c \
+    src/concurrency/eventloop.c \
+    src/concurrency/connpool.c
+
+CLI_SRCS = \
+    src/cli/webdavctl.c
+
+COMMON_OBJS = $(COMMON_SRCS:.c=.o)
+SERVER_OBJS = $(SERVER_SRCS:.c=.o)
+CLI_OBJS = $(CLI_SRCS:.c=.o)
+
+all: nwedav webdavctl
+
+nwedav: $(COMMON_OBJS) $(SERVER_OBJS)
+	$(CC) -o $@ $^ $(LDFLAGS)
+
+webdavctl: $(COMMON_OBJS) $(CLI_OBJS)
+	$(CC) -o $@ $^ $(LDFLAGS)
+
+%.o: %.c
+	$(CC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
+
+clean:
+	rm -f $(COMMON_OBJS) $(SERVER_OBJS) $(CLI_OBJS) nwedav webdavctl
+
+install: nwedav webdavctl
+	install -d $(DESTDIR)/usr/local/bin
+	install -m 755 nwedav $(DESTDIR)/usr/local/bin/
+	install -m 755 webdavctl $(DESTDIR)/usr/local/bin/
+
+uninstall:
+	rm -f $(DESTDIR)/usr/local/bin/nwedav
+	rm -f $(DESTDIR)/usr/local/bin/webdavctl
+
+.PHONY: all clean install uninstall